Posts tagged: gvoice

Incredible PBX on Steroids: The Asterisk-GUI Project Rolls On (Chapter 3)

We’re big fans of the new hybrid vehicles especially the Cadillac ELR. It combines an electric motor with a gas generator to give you the best of both worlds. For in-town driving, you get terrific performance at 1.5¢/mile using pure electric power. But you’re not hamstrung from venturing out to anywhere you choose using a traditional gas engine that can be refueled quickly at any time. In a nutshell, that’s the design philosophy that’s inspired development of Incredible PBX for the Asterisk-GUI.

This is the third installment in our series. You can catch up with the Overview as well as Chapter 1 and Chapter 2 here.

With Incredible PBX for the Asterisk-GUI, you get a terrific GUI to manage Asterisk® while taking advantage of all the neat features that Incredible PBX brings to the table using traditional dialplan design. Stated another way, you’re not being forced to always use a GUI to manage your Asterisk server when command-line utilities are more functional or efficient. Previous approaches to GUI-only management of Asterisk forced you to always jump through the GUI hoops to do much of anything. Unfortunately, what you lost in that scenario was a lot of the native functionality of Asterisk.

That’s not to say there wasn’t a lot to like about our GUI heritage with Asterisk. These open source projects brought a wealth of features to the table for beginners without having to learn much about the way Asterisk actually worked. The downside was you didn’t learn much about the way Asterisk actually worked. On the one hand, it kept folks from making serious programming errors that could result in major phone bills when security issues crept into a dialplan. The drawback was you never learned why. When something came unglued and things do come unglued, you were up the proverbial creek without a paddle. In fact, many never knew they had a paddle much less what it looked like.

I wish I had a nickel for every user that’s complained over the years that Asterisk won’t start. The last time we checked Google was showing 963,000 of them. It turns out that many of these weren’t failures with Asterisk at all but rather shortcomings in the interaction of one particular graphical user interface with MySQL. If you don’t believe it, shut down MySQL on your existing Asterisk server and then try to restart Asterisk. You’ll never see this with Incredible PBX for Asterisk-GUI. Why? Because the reliability of Asterisk isn’t tied to the reliability of MySQL, Apache, Perl, Asterisk-GUI, or any other foreign application.

**** WARNING: ERROR IN CONFIGURATION ****
astrundir in '/etc/asterisk' is set to  but the directory
does not exists. Attempting to create it with: 'mkdir -p '
mkdir: missing operand
Try 'mkdir --help' for more information.
**** ERROR: COULD NOT CREATE  ****
Attempt to execute 'mkdir -p ' failed with an exit code of 1
You must create this directory and the try again.

In the new Incredible PBX design, we haven’t forgotten about security either. In this day and age, it’s the single most important feature of any PBX that is connected to the Internet. We always recommend running your server behind a hardware-based firewall with no Internet port exposure, but we appreciate that’s not always possible particularly with Cloud-based servers. Incredible PBX is delivered with the Linux IPtables firewall preconfigured. It allows access from your server’s IP address, from the IP address used to install Incredible PBX, from private IP addresses on your local area network, and from a very limited set of trusted providers so that you can connect your trunks to make and receive phone calls. The tools to add and delete whitelist entries on your firewall are also included. In addition, we’ve included the PortKnocker utility which lets remote users with the three port knock codes gain access until their IP addresses can be whitelisted by an administrator. In addition to IPtables security, there’s another layer of protection for web-based applications. Asterisk-GUI, of course, has its own security system that’s tied to the Asterisk manager.conf setup. All of the remaining web applications require Apache authentication. For Reminders and AsteriDex, you can create multiple Apache passwords for individual users or groups of users. For administrator applications, you set an admin password that’s only known by administrators.

We couldn’t help chuckling recently when one of the security sites found a vulnerability in one of the Incredible PBX applications but noted that administrator access was required to get to the application to launch the attack. That’s akin to saying your system is vulnerable if you hand out your root user credentials AND whitelist the IP addresses of the bad guys. Literally, what was documented was true, but finding security issues in software that requires root permissions for access is getting a little desperate, wouldn’t you say? Of course, one of our “competitors” wasted little time splashing it all over their web site. The vulnerability was fixed the same day it was disclosed, by the way. And it was automatically pushed out to every Incredible PBX server, all of which run industry-standard Linux operating systems. That’s the approach to system design and support our users have come to expect. Feel free to compare it to the offerings you’ll find elsewhere, commercial or otherwise. That, my friends, is what freedom of choice is all about.

The Lean, Mean (Pure) Asterisk Machine

The roadmap for the future direction of Incredible PBX continues to evolve, but let us take a moment and share our current thinking. We’ve previously mentioned that the target audience for Incredible PBX for Asterisk-GUI is hobbyists. That’s not a dirty word in our book. Nor does it mean the platform won’t be as robust and reliable as previous releases of Incredible PBX. It just has a smaller memory footprint and much faster performance. Yes, we’re using Asterisk-GUI which Digium no longer supports. But that was a marketing decision that had nothing to do with the quality of the product. It was written by some of the best brains in the Asterisk business so we’re comfortable using it as a platform. We’ve found only two bugs in beating on the software relentlessly. Outbound Caller ID on a per extension basis can be quirky. Trunk-based CallerID whether assigned at the provider end or on Incredible PBX works just fine including CallerID spoofing where permitted by the provider. The other wrinkle was Asterisk-GUI’s failure to support the [context](+) feature of Asterisk. We’ve found an easy workaround for that one as well. We just won’t use it.

The plan is to roll this out first on the CentOS 6.5 (now 6.6) platform because we view it as the most stable. Scientific Linux 6.6 works equally well. Once we get any kinks out of the code, we’ll turn our attention to Ubuntu 14 and then on to the small hardware: Raspberry Pi, BeagleBone Black, CuBox, and PogoPlug. There’s also been interest in a more internationally-friendly version, and that’s on the drawing board as well. During the rollout, we hope to complete work on moving a few MySQL-based utilities to SQLite3. We will leave MySQL in the installation mix but will turn it off to further reduce the memory overhead of the install. We also will scale back the number of simultaneous Apache sessions running since the purpose of Apache is primarily to support administrator utilities on the server. Actually, you can run Asterisk-GUI using either the native Asterisk http server or with Apache. Thanks to Bill Simon of Simon Telephonics, you’ll have both options. With simple modifications, we think we can improve the performance on memory-constrained platforms dramatically while providing a robust, high performance platform if you have the hardware to support it. We’ve also initiated discussions with Amazon to roll out a phone service using this platform for the new Amazon Echo product. So 2015 is shaping up to be another banner year in the VoIP world. We hope you’ll come join us.

This week we continue the march. We want to review some of the open source features being incorporated into Incredible PBX from the open source code base minus some of the superfluous GUI modules. For example, you can manage blacklisting of callers using nothing more than your telephone. The same is true for SMS messaging. If you can dictate an SMS message, then why type it? Bash scripts are a well-tested feature of Incredible PBX, and you’ll still find a healthy collection of them in the /root folder of your server after you complete the install. But today’s focus is what can be accomplished with Incredible PBX using nothing more than your telephone.

Blacklisting Callers with Incredible PBX

One of our old PBX favorites dating back to the Asterisk@Home days was blacklisting. This means that old girlfriends and telemarketers get routed to Zapateller with a message that your number is not in service. By default, Incredible PBX for Asterisk-GUI will automatically blacklist incoming calls without a CallerID number. You can modify this behavior if desired:

asterisk -rx "database del blacklist blocked"

If you change your mind and want to turn anonymous call blocking back on, use this command:

asterisk -rx "database put blacklist blocked 1"

We’ve retained the same feature codes to manage blacklisting of specific numbers from any phone on your system:

  • *30 – Add a number to Blacklist
  • *31 – Remove number from Blacklist
  • *32 – Blacklist last number that called

Blacklisting was all smoke and mirrors in the old GUI days. But we want you to understand how this actually works so that you can change it if you’d like. For example, instead of the Zapateller tone, you might prefer to route callers on your blacklist to Lenny (53669 on your phone) so that you waste some of the caller’s time instead of the other way around.

In the extensions_additional.conf file, find the [app-blacklist-check] context. The last four lines in that context look like this:

;exten => s,n,Goto(DLPN_DialPlanMain,53669,1)
exten  => s,n,Zapateller()
exten  => s,n,Playback(ss-noservice)
exten  => s,n,Hangup

To route blacklisted callers to Lenny, just uncomment the top line shown and add semicolons to the next two lines:

exten  => s,n,Goto(DLPN_DialPlanMain,53669,1)
;exten => s,n,Zapateller()
;exten => s,n,Playback(ss-noservice)
exten  => s,n,Hangup

Wasn’t that easy? Now just save your changes and reload your dialplan: asterisk -rx "dialplan reload"

You may prefer to manually add numbers to your blacklist. You can do this from the Linux command prompt like this. Don’t forget the 1.

asterisk -rx "database put blacklist 8005551212 1"

From the Asterisk CLI (asterisk -rvvvvvvvvvv), do it like this:

database put blacklist 8005551212 1

To display all of your blacklist entries, try this:

database show blacklist

To remove an entry from the blacklist, use this syntax:

database del blacklist 8005551212

MP3 Voicemail Messaging for Cellphone Playback

One of the most requested features on our forums has been the ability to forward voicemails in MP3 format so that they play back correctly on cellphones and desktop mail clients. As with many of the Incredible PBX features, we wouldn’t know where to start to thank all of the folks that helped make this happen. You can review the thread on the PIAF Forum for background. This is yet another great example of how the open source community should work. Thanks to everyone that participated in bringing this development to fruition. On the new Incredible PBX for Asterisk-GUI platform it’s automatic. All you have to do is assign an email address to any voice mailbox on your server in the Users setup, and incoming voicemail messages will be delivered by email in the proper format for playback. The message thread explains how for those with an interest.

Accessing Voicemail Messages with Incredible PBX

Speaking of voicemail, we’ve tried to maintain the same feature codes that many have become accustomed to over the years. Here’s a recap of the codes in case you ever forget:

  • *98 – Check Voicemail Messages from Any Phone
  • *extension – Leave a Voicemail for Dialed Extension
  • * after voicemail connect – Access Voicemail Retrieval

Migrating the Google Speech Feature Set to Incredible PBX for Asterisk-GUI

We previously mentioned that Google Voice wasn’t around when Asterisk-GUI was developed. Not to worry. We’ve added it. And that’s just the beginning. All of the Google features that have made Incredible PBX so popular will be included in the Asterisk-GUI edition. That includes text-to-speech and speech recognition thanks to Lefteris Zafiris. It also includes SMS messaging with your same Google Voice credentials. Pick up a phone and dial S-M-S to dictate and send an SMS message to any recipient in the U.S. or Canada. Pick up a phone and dial 949 to listen to a weather forecast for any major city in the world. Just say the name of the city and state or country. Pick up a phone and dial 951 to listen to the latest News Headlines. Or dial T-O-D-A-Y to listen to Today in History. Sign up for a free Wolfram Alpha key, dial 4747, and you’ve got a voice-enabled encyclopedia at your fingertips. Eat your heart out, Siri. Our extra special thanks to Google for still supporting the open source community. Did we mention… It’s all still free.

Google has changed the rules a bit on using their speech recognition engine. So you now need an API Key to use the Speech Recognition AGI script for Asterisk. Assuming you’ll be using the functionality for “personal and development use,” here’s how to obtain your API key:

1. IMPORTANT FIRST STEP: Use an existing Google/Gmail account to join the Chrome-Dev Group.

2. Using the same account, create a new Speech Recognition Project.

3. Click on your newly created project and choose APIs & auth.

4. Turn ON Speech API by clicking on its Status button in the far right margin.

5. Click on Credentials in APIs & auth and choose Create New Key -> Server key. Leave the IP address restriction blank!

6. Write down your new API key or copy it to the clipboard.

7. Once you’ve installed Incredible PBX, log into your server as root and edit speech-recog.agi in /var/lib/asterisk/agi-bin.

8. Go to line 70 of speech-recog.agi: my $key = "". Insert your API key from Step #6 above between the quotation marks and save the file: Ctrl-X, Y, then Enter.

This will activate all of the Speech Recognition applications in Incredible PBX as described above.

Activating Wolfram Alpha with Speech Recognition in Incredible PBX

If you’re not familiar with Wolfram Alpha, it’s an encyclopedia and almanac on steroids. It’s driven by a supercomputer. There’s not much it doesn’t know. We’ve written an exhaustive article on Wolfram Alpha for Asterisk so start there. With Incredible PBX, everything is preconfigured for you. All you need to do is obtain a (free) API key.

To get started, sign up for a free Wolfram Alpha API account. Just provide your email address and set up a password. It takes less than a minute. Log into your account and click on Get An App ID. Make up a name for your application and write down (and keep secret) your APP-ID code. That’s all there is to getting set up with Wolfram Alpha. If you want to explore costs for commercial use, there are links to let you get more information.

Now you’ll need to insert your API key into /var/lib/asterisk/agi-bin/4747. The first line of the file looks like this: APPID="Wolfram-Alpha-API-Key-Goes-Here". Insert your API key between the quotation marks and save the file: Ctrl-X, Y, then Enter.

You’re ready to try out Wolfram Alpha by dialing 4-7-4-7 from any phone connected to your server. Here are some sample queries to get you started:

Weather in Charleston South Carolina
Weather forecast for Washington D.C.
Next solar eclipse
Otis Redding
Define politician
Who won the 1969 Superbowl? (Broadway Joe)
What planes are overhead? (flying over your server’s location)
Ham and cheese sandwich (nutritional information)
Holidays 2015 (summary of all holidays for 2015 with dates and DOW)
Medical University of South Carolina (history of MUSC)
Star Trek (show history, air dates, number of episodes, and more)
Apollo 11 (everything you ever wanted to know)
Cheapest Toaster (brand and price)
Battle of Gettysburg (sad day :-) )
Daylight Savings Time 2015 Charleston South Carolina (date ranges and how to set your clocks)
iPads by Apple (pricing, models, and specs from Best Buy)
Doughnut (you don’t wanna know)
Snickers bar (ditto)
Weather (local weather at your server’s location)

Yahoo! Weather by ZIP Code Is Moving to SQLite 3

One of the more popular features of Incredible PBX has always been the ability to retrieve a Yahoo weather forecast by dialing Z-I-P and plugging in a 5-digit ZIP code for the weather report you wished to hear. This always required a MySQL zip code database to translate the zip code into a city and state for presentation to the various weather services. As part of our move to reduce the memory footprint of Incredible PBX, we are gradually removing our dependence on MySQL. In its place we’re deploying SQLite3 databases, and Weather by ZIP Code was our first successful migration. Moving the MySQL zip code database to SQLite was a snap using a terrific open source script that we highly recommend to developers. It lets you convert any MySQL database (with indexes) to SQLite 3 in seconds. Here’s the link if you ever have the need. About 5 lines of PHP code had to be modified to complete the migration from MySQL to SQLite. Not bad. For our purposes, you’ll never know the difference when you dial in for your next weather forecast.

Originally published: Monday, December 15, 2014



Need help with Asterisk? Visit the PBX in a Flash Forum.


 
New Vitelity Special. Vitelity has generously offered a new discount for PBX in a Flash users. You now can get an almost half-price DID from our special Vitelity sign-up link. If you’re seeking the best flexibility in choosing an area code and phone number plus the lowest entry level pricing plus high quality calls, then Vitelity is the hands-down winner. Vitelity provides Tier A DID inbound service in over 3,000 rate centers throughout the US and Canada. And, when you use our special link to sign up, the Nerd Vittles and PBX in a Flash projects get a few shekels down the road while you get an incredible signup deal as well. The going rate for Vitelity’s DID service is $7.95 a month which includes up to 4,000 incoming minutes on two simultaneous channels with terminations priced at 1.45¢ per minute. Not any more! For PBX in a Flash users, here’s a deal you can’t (and shouldn’t) refuse! Sign up now, and you can purchase a Tier A DID with unlimited incoming calls for just $3.99 a month. To check availability of local numbers and tiers of service from Vitelity, click here. Do not use this link to order your DIDs, or you won’t get the special pricing! Vitelity’s rate is just 1.44¢ per minute for outbound calls in the U.S. There is a $35 prepay when you sign up. This covers future usage and any balance is fully refundable if you decide to discontinue service with Vitelity.
 


Some Recent Nerd Vittles Articles of Interest…

30 Minutes to Paradise: Incredible PBX for Ubuntu 14.04 is Ready for Primetime

A few months ago, we introduced a preview of Incredible PBX for Ubuntu 14. And now we’re pleased to release the latest production-ready version with all the bells and whistles including Incredible Fax featuring HylaFax and AvantFax.

Introducing Incredible PBX 11 for Ubuntu 14.04

Today’s plan is to build a production-ready version of Incredible PBX with Ubuntu 14.04 that mimics the functionality of our previous builds with literally dozens of turnkey applications that show off the very best features of Asterisk®. If you believe in the open source community, this build is for you. No strings, no gotchas, and no quirky licenses!

Six months ago, we could barely spell Ubuntu. Then an enterprising young programmer named Eric Teeter shot us a script to install Ubuntu with Asterisk and FreePBX® and encouraged us to embellish it and to share the results with our Nerd Vittles audience. Having rarely met an operating system we didn’t like, we jumped at the opportunity knowing full well that Billy Chia at Digium and Tony Lewis at Schmooze Com had reported impressive results with Ubuntu years ago. It seemed like a good fit for Incredible PBX as well. Unlike CentOS, Ubuntu also was a platform that was easily transferable to the new $50 BeagleBone Black and the CuBox-i.

Our special thanks to Lefteris Zafiris for cleaning up all of the text-to-speech incompatibilities with Ubuntu. Within minutes from the other side of the world, Lefteris had logged into our Ubuntu Server in the Cloud and tamed the TTS beast. If ever there was an unsung hero in the Asterisk community, it’s Lefteris Zafiris. He has single-handedly kept all of the speech applications humming along through countless versions of Asterisk. We would have quit long ago without his untiring assistance. Thank you (again), Lefteris, for coming to the rescue.

Building an Ubuntu 14.04 Platform for Incredible PBX

As a result of the trademark and copyright morass, we’ve steered away from the bundled operating system in favor of a methodology that relies upon you to put in place the operating system platform on which to run PBX in a Flash or Incredible PBX. The good news is it’s easy! With many cloud-based providers1, you can simply click a button to choose your favorite OS flavor and within minutes, you’re ready to go. With many virtual machine platforms such as VirtualBox, it’s equally simple to find a pre-built Ubuntu 14.04 image or roll your own.

If you’re new to VoIP or to Nerd Vittles, here’s our best piece of advice. Don’t take our word for anything! Try it for yourself in the Cloud! You can build an Ubuntu 14.04 image on Digital Ocean in under one minute and install Incredible PBX for Ubuntu 14.04 in about 15 minutes. Then try it out for two full months. It won’t cost you a dime. Use our referral link to sign up for an account. Enter a valid credit card to verify you’re who you say you are. Create an Ubuntu 14.04 (not 14.10!) 512MB droplet of the cheapest flavor ($5/mo.). Go to the Billing section of the site, and enter the following promo code: UBUNTUDROPLET. That’s all there is to it. A $10 credit will be added to your account, and you can play to your heart’s content. Delete droplets, add droplets, and enjoy the free ride!

For today, we’ll walk you through building your own stand-alone server using the Ubuntu 14.04 mini.iso. If you’re using Digital Ocean in the Cloud, skip down to Installing Incredible PBX 11. If you’re using your own hardware, to get started, download the 32-bit or 64-bit Ubuntu 14.04 “Trusty Tahr” Minimal ISO from here. Then burn it to a CD/DVD or thumb drive and boot your dedicated server from the image. Remember, you’ll be reformatting the drive in your server so pick a machine you don’t need for other purposes.

For those that would prefer to build your Ubuntu 14.04 Wonder Machine using VirtualBox on any Windows, Mac, or existing Linux Desktop, here are the simple steps. Create a new virtual machine specifying either the 32-bit or 64-bit version of Ubuntu. Allocate 1024MB of RAM (512MB also works fine!) and at least 20GB of disk space using the default hard drive setup in all three steps. In Settings, click System and check Enable I/O APIC and uncheck Hardware Clock in UTC Time. Click Audio and Specify then Enable your sound card. Click Network and Enable Network Adapter for Adapter 1 and choose Bridged Adapter. Finally, in Storage, add the Ubuntu 14.04 mini.iso to your VirtualBox Storage Tree as shown below. Then click OK and start up your new virtual machine. Simple!

Here are the steps to get Ubuntu 14.04 humming on your new server or virtual machine once you’ve booted up. If you can bake cookies from a recipe, you can do this:

UBUNTU mini.iso install:
Choose language
Choose timezone
Detect keyboard
Hostname: incrediblepbx < continue >
Choose mirror for downloads
Confirm archive mirror
Leave proxy blank unless you need it
< continue >
** couple minutes of whirring as initial components are loaded **
New user name: incredible
< continue >
Account username: incredible
< continue >
Account password: makeitsecure
< continue >
Encrypt home directory < no >
Confirm time zone < yes >
Partition disks: Guided - use entire disk and set up LVM
Confirm disk to partition
Write changes to disks and configure LVM
Whole volume? < continue>
Write changes to disks < yes> < -- last chance to preserve your disk drive!
** about 15 minutes of whirring during base system install ** < no touchy anything>
** another 5 minutes of whirring during base software install ** < no touchy anything>
Upgrades? Install security updates automatically
** another 5 minutes of whirring during more software installs ** < no touchy anything>
Software selection: *Basic Ubuntu server (only!)
** another couple minutes of whirring during software installs ** < no touchy anything>
Grub boot loader: < yes>
UTC for system clock: < no>
Installation complete: < continue> after removing installation media
** on VirtualBox, PowerOff after reboot and remove [-] mini.iso from Storage Tree & restart VM
login as user: incredible
** enter user incredible's password **
sudo passwd
** enter incredible password again and then create secure root user password **
su root
** enter root password **
apt-get update
apt-get install ssh -y
sed -i 's|without-password|yes|' /etc/ssh/sshd_config
sed -i 's|yes"|without-password"|' /etc/ssh/sshd_config
ifconfig
** write down the IP address of your server from ifconfig results
reboot
** login via SSH to continue **

Installing Incredible PBX on Your Ubuntu 14.04 Server

Adding Incredible PBX to a running Ubuntu 14.04 server is a walk in the park. To restate the obvious, your server needs a reliable Internet connection to proceed. Using SSH (or Putty on a Windows machine), log into your new server as root at the IP address you deciphered in the ifconfig step at the end of the Ubuntu install procedure above. First, make sure to run the update step for Ubuntu before you begin the install. This is especially important if using a cloud-based Ubuntu 14 server.

apt-get update && apt-get upgrade -y && reboot

WARNING: If you’re using a 512MB droplet at Digital Ocean, be advised that their Ubuntu setup does NOT include a swap file. This may cause serious problems when you run out of RAM. Uncomment ./create-swapfile-DO line below to create a 1GB swap file which will be activated whenever you exceed 90% RAM usage on Digital Ocean.

Now let’s begin the Incredible PBX install. Log back in as root and issue the following commands:

cd /root
wget http://incrediblepbx.com/incrediblepbx11.4.ubuntu14.tar.gz
tar zxvf incrediblepbx*
#./create-swapfile-DO
./Incredible*

Once you have agreed to the license agreement and terms of use, press Enter and go have a 30-minute cup of coffee. The Incredible PBX installer runs unattended so find something to do for a bit unless you just like watching code compile. When you see “Have a nice day”, your installation is complete. Write down your admin password for FreePBX as well as your three “knock” ports for PortKnocker. If you forget them, you can reset your admin password by running /root/admin-pw-change. And you can retrieve your PortKnocker setup like this: cat /root/knock.FAQ.

Log out and back in as root and you should be greeted with a status display that looks something like this:

You can access the Asterisk CLI by typing: asterisk -rvvvvvvvvvv

You can access the FreePBX GUI using your favorite web browser to configure your server. Just enter the IP address shown in the status display. The default username is admin with the randomized password you wrote down above. If desired, you can change them in FreePBX Administration by clicking Admin -> Administrators -> admin. Enter a new password and click Submit Changes then Apply Config. Now edit extension 701 so you can figure out (or change) the randomized passwords that were set up for default 701 extension and voicemail: Applications -> Extensions -> 701.

Setting Up a Soft Phone to Use with Incredible PBX

Now you’re ready to set up a telephone so that you can play with Incredible PBX. We recommend YateClient which is free. Download it from here. Run YateClient once you’ve installed it and enter the credentials for the 701 extension on Incredible PBX. You’ll need the IP address of your server plus your extension 701 password. Choose Settings -> Accounts and click the New button. Fill in the blanks using the IP address of your server, 701 for your account name, and whatever password you created for the extension. Click OK.

Once you are registered to extension 701, close the Account window. Then click on YATE’s Telephony Tab and place some test calls to the numerous apps that are preconfigured on Incredible PBX. Dial a few of these to get started:

123 - Reminders
222 - ODBC Demo (use acct: 12345)
947 - Weather by ZIP Code
951 - Yahoo News
*61 - Time of Day
*68 - Wakeup Call
TODAY - Today in History

Now you’re ready to connect to the telephones in the rest of the world. If you live in the U.S., the easiest way (at least for now) is to use an existing (free) Google Voice account. Google has threatened to shut this down but as this is written, it still works with previously set up Google Voice accounts. The more desirable long-term solution is to choose several SIP providers and set up redundant trunks for your incoming and outbound calls. The PIAF Forum includes dozens of recommendations to get you started.

Configuring Google Voice

If you want to use Google Voice, you’ll need a dedicated Google Voice account to support Incredible PBX. If you want to use the inbound fax capabilities of Incredible Fax 11, then you’ll need an additional Google Voice line that can be routed to the FAX custom destination using FreePBX. The more obscure the username (with some embedded numbers), the better off you will be. This will keep folks from bombarding you with unsolicited Gtalk chat messages, and who knows what nefarious scheme will be discovered using Google messaging six months from now. So keep this account a secret!

We’ve tested this extensively using an existing Google Voice account, and inbound calling is just not reliable. The reason seems to be that Google always chooses Gmail chat as the inbound call destination if there are multiple registrations from the same IP address. So, be reasonable. Do it our way! Use a previously configured and dedicated Gmail and Google Voice account, and use it exclusively with Incredible PBX 11.

IMPORTANT: Be sure to enable the Google Chat option as one of your phone destinations in Settings, Voice Setting, Phones. That’s the destination we need for The Incredible PBX to work its magic! Otherwise, all inbound and outbound calls will fail. If you don’t see this option, you’re probably out of luck. Google has disabled the option in newly created accounts as well as some old ones that had Google Chat disabled. Now go back to the Google Voice Settings.

While you’re still in Google Voice Settings, click on the Calls tab. Make sure your settings match these:

  • Call ScreeningOFF
  • Call PresentationOFF
  • Caller ID (In)Display Caller’s Number
  • Caller ID (Out)Don’t Change Anything
  • Do Not DisturbOFF
  • Call Options (Enable Recording)OFF
  • Global Spam FilteringON

Click Save Changes once you adjust your settings. Under the Voicemail tab, plug in your email address so you get notified of new voicemails. Down the road, receipt of a Google Voice voicemail will be a big hint that something has come unglued on your PBX.

One final word of caution is in order regardless of your choice of providers: Do NOT use special characters in any provider passwords, or nothing will work!

Now you’re ready to set up your Google Voice trunk in FreePBX. After logging into FreePBX with your browser, click the Connectivity tab and choose Google Voice/Motif. To Add a new Google Voice account, just fill out the form. Do NOT check the third box or incoming calls will never ring!

IMPORTANT LAST STEP: Google Voice will not work unless you restart Asterisk from the Linux command line at this juncture. Using SSH, log into your server as root and issue the following command: amportal restart.

If you have trouble getting Google Voice to work (especially if you have previously used your Google Voice account from a different IP address), try this Google Voice Reset Procedure. It usually fixes connectivity problems.

Troubleshooting Audio and DTMF Problems

You can avoid one-way audio on calls and touchtones that don’t work with these simple settings in FreePBX: Settings -> Asterisk SIP Settings. Just plug in your public IP address and your private IP subnet. Then set ULAW as the only Audio Codec.

Adding Speech Recognition to Incredible PBX

To support many of our applications, Incredible PBX has included Google’s speech recognition service for years. These applications include Weather Reports by City (949), AsteriDex Voice Dialing by Name (411), and Wolfram Alpha for Asterisk (4747), all of which use Lefteris Zafiris’ terrific speech-recog AGI script. Unfortunately (for some), Google now has tightened up the terms of use for their free speech recognition service. Now you can only use it for “personal and development use.” If you meet those criteria, keep reading. Here’s how to activate speech recognition on Incredible PBX. Don’t skip any steps!

1. Using an existing Google/Gmail account to join the Chrome-Dev Group.

2. Using the same account, create a new Speech Recognition Project.

3. Click on your newly created project and choose APIs & auth.

4. Turn ON Speech API by clicking on its Status button in the far right margin.

5. Click on Credentials in APIs & auth and choose Create New Key -> Server key. Leave the IP address restriction blank!

6. Write down your new API key or copy it to the clipboard.

7. Log into your server as root and issue the following commands:

# for Ubuntu and Debian platforms
apt-get clean
apt-get install libjson-perl flac -y
# for RedHat and CentOS platforms
yum -y install perl-JSON
# for all Linux platforms
cd /var/lib/asterisk/agi-bin
mv speech-recog.agi speech-recog.last.agi
wget --no-check-certificate https://raw.githubusercontent.com/zaf/asterisk-speech-recog/master/speech-recog.agi
chown asterisk:asterisk speech*
chmod 775 speech*
nano -w speech-recog.agi

8. When the nano editor opens, go to line 70 of speech-recog.agi: my $key = "". Insert your API key from Step #6 above between the quotation marks and save the file: Ctrl-X, Y, then Enter.

Now you’re ready to try out the speech recognition apps. Dial 949 and say the name of a city and state/province/country to get a current weather forecast from Yahoo. Dial 411 and say “American Airlines” to be connected to American.

To use Wolfram Alpha by phone, you first must install it. Obtain your free Wolfram Alpha APP-ID here. Then run the one-click installer: /root/wolfram/wolframalpha-oneclick.sh. Insert your APP-ID when prompted. Now dial 4747 to access Wolfram Alpha by phone and enter your query, e.g. “What planes are overhead.” Read the Nerd Vittles tutorial for additional examples and tips.

A Few Words about the Incredible PBX Security Model for Ubuntu

Incredible PBX for Ubuntu 14 is our most secure turnkey PBX implementation, ever. As configured, it is protected by both Fail2Ban and a hardened configuration of the IPtables Linux firewall. As configured, nobody can access your PBX without your credentials AND an IP address that is either on your private network or that matches the IP address of your server or the PC from which you installed Incredible PBX. Incredible PBX is preconfigured to let you connect to many of the leading SIP hosting providers without additional firewall tweaking.

You can whitelist additional IP addresses for remote access in several ways. First, you can use the command-line utilities: /root/add-ip and /root/add-fqdn. You can also remove whitelisted IP addresses by running /root/del-acct. Second, you can dial into extension 864 (or use a DID pointed to extension 864 aka TM4) and enter an IP address to whitelist. Before Travelin’ Man 4 will work, you’ll need to add credentials for each caller using the tools in /root/tm4. You must add at least one account before dial-in whitelisting will be enabled. Third, you can temporarily whitelist an IP address by successfully executing the PortKnocker 3-knock code established for your server. You’ll find the details and the codes in /root/knock.FAQ. Be advised that IP addresses whitelisted with PortKnocker (only!) go away whenever your server is rebooted or the IPtables firewall is restarted. For further information on the PortKnocker technology and available clients for iOS and Android devices, review the Nerd Vittles tutorial.

HINT: The reason that storing your PortKnocker codes in a safe place is essential is because it may be your only available way to gain access to your server if your IP address changes. You obviously can’t use the command-line tools to whitelist a new IP address if you cannot gain access to your server at the new IP address.

We always recommend you also add an extra layer of protection by running your server behind a hardware-based firewall with no Internet port exposure, but that’s your call. If you use a hardware-based firewall, be sure to map the three PortKnocker ports to the internal IP address of your server!

The NeoRouter VPN client also is included for rock-solid, secure connectivity for remote users. Read our previous tutorial for setup instructions.

As one would expect, the IPtables firewall is a complex piece of software. If you need assistance configuring it, visit the PIAF Forum for some friendly assistance.

Adding Incredible Fax 11 to Your Server

Once you’ve completed the Incredible PBX install, log out and log back in to load the latest automatic updates. Then reboot. Now you’re ready to continue your adventure by installing Incredible Fax 11 for Ubuntu. Special thanks to Josh North for all his hard work on this!

cd /root
wget --no-check-certificate https://raw.githubusercontent.com/joshnorth/UbuntuPIAF/master/incrediblefax11_ubuntu14.sh
chmod +x incrediblefax11_ubuntu14.sh
./incrediblefax11_ubuntu14.sh

Just accept all of the defaults during the installation process. Once you complete the install, reboot your server and then set your AvantFax admin password: /root/avantfax-pw-change. Now you can access both FreePBX and AvantFax by pointing your browser to the IP address of your server. Please note that we’ve had problems logging into AvantFax with the most recent version of the Chrome browser. Works great with Firefox!

Incredible Backup and Restore

We’re pleased to introduce our latest backup and restore utilities for Incredible PBX. Running /root/incrediblebackup will create a backup image of your server in /tmp. This backup image then can be copied to any other medium desired for storage. To restore it to another Incredible PBX 11 server, simply copy the image to a server running Asterisk 11 and FreePBX 2.11 and run /root/incrediblerestore. Doesn’t get much simpler than that.

NEWS FLASH: More good news. If you decide you’d prefer another Linux platform, Incredible Backup and Restore will now let you migrate from one operating system to another. For details on the procedure, see this message thread.

Incredible PBX Automatic Update Utility

Every time you log into your server as root, Incredible PBX will ping the IncrediblePBX.com web site to determine whether one or more updates are available to bring your server up to current specs. We recommend you log in at least once a week just in case some new security vulnerability should come along.

In the meantime, we encourage you to sign up for an account on the PIAF Forum and join the discussion. In addition to providing first-class, free support, we think you’ll enjoy the camaraderie. Come join us!

Originally published: Monday, June 30, 2014    Updated: Friday, October 24, 2014


Support Issues. With any application as sophisticated as this one, you’re bound to have questions. Blog comments are a terrible place to handle support issues although we welcome general comments about our articles and software. If you have particular support issues, we encourage you to get actively involved in the PBX in a Flash Forums. It’s the best Asterisk tech support site in the business, and it’s all free! Please have a look and post your support questions there. Unlike some forums, ours is extremely friendly and is supported by literally hundreds of Asterisk gurus and thousands of users just like you. You won’t have to wait long for an answer to your question.



Need help with Asterisk? Visit the PBX in a Flash Forum.


 
New Vitelity Special. Vitelity has generously offered a new discount for PBX in a Flash users. You now can get an almost half-price DID from our special Vitelity sign-up link. If you’re seeking the best flexibility in choosing an area code and phone number plus the lowest entry level pricing plus high quality calls, then Vitelity is the hands-down winner. Vitelity provides Tier A DID inbound service in over 3,000 rate centers throughout the US and Canada. And, when you use our special link to sign up, the Nerd Vittles and PBX in a Flash projects get a few shekels down the road while you get an incredible signup deal as well. The going rate for Vitelity’s DID service is $7.95 a month which includes up to 4,000 incoming minutes on two simultaneous channels with terminations priced at 1.45¢ per minute. Not any more! For PBX in a Flash users, here’s a deal you can’t (and shouldn’t) refuse! Sign up now, and you can purchase a Tier A DID with unlimited incoming calls for just $3.99 a month. To check availability of local numbers and tiers of service from Vitelity, click here. Do not use this link to order your DIDs, or you won’t get the special pricing! Vitelity’s rate is just 1.44¢ per minute for outbound calls in the U.S. There is a $35 prepay when you sign up. This covers future usage and any balance is fully refundable if you decide to discontinue service with Vitelity.
 


Some Recent Nerd Vittles Articles of Interest…

  1. With some providers including ones linked in this article, Nerd Vittles receives referral fees which assist in keeping the Nerd Vittles lights burning brightly. []

A Firsthand Look at Disaster Recovery: Tethering and IAX with Asterisk

One of the exciting challenges of building a swimming pool is knowing that it’s just a matter of time until your Internet connection dies. As you might imagine, swimming pools are major construction and involve a lot of digging. And digging usually means some oops moments when cables get cut. In our case, we had watched the folks digging the trenches for all of the pool plumbing to be sure they didn’t accidentally whack one of three coax cables coming into our house. And, when it came time to cover up the trenches, we pointed out the orange cables to the Bobcat driver knowing we were finally home free. Not so fast! Two minutes later, Mario had driven the Bobcat right over the primary Internet cable leaving the shredded remains sticking up through the dirt. Oops. Sorry. Shit happens!

Looking on the positive side, we chuckled, “What a perfect opportunity to test our backup Asterisk® system!” Our backup system is pretty clever if we do say so. It relies upon a Verizon WiFi HotSpot running on our Galaxy smartphone and a duplicate of our Asterisk-based PBX in a Flash™ server running as a virtual machine under VirtualBox on an iMac desktop. The entire setup takes less than a minute to activate. Well, that was the plan anyway.

It turns out that Verizon does SIP a little differently with a SIP ALG in the path so Asterisk couldn’t register with all but one of our dozen SIP providers. Congratulations, CallCentric! The workaround is to enable STUN. That is now possible with Asterisk 11. Short of that, you’re left with CallCentric. Unfortunately for us, we don’t do much SIP trunking with CallCentric, and none of our primary DIDs are connected through them. The other option is to add port=5080 to your trunk setup with any SIP trunks you register with VoIP.ms using a username and password. Our attention span was too short to tackle STUN in the middle of this crisis. But there’s good news. Verizon doesn’t mess with IAX network traffic at all. Since a couple of our primary DIDs are registered with VoIP.ms using IAX trunks, restoring these IAX trunks to full functionality took less than a minute. That is step one of a three-step process. You need inbound trunks, phones, and outbound trunks to get your redundant VoIP server back in business.

Getting phones to function on what is now a purely WiFi network (through the Verizon HotSpot) can be problematic unless you’ve done your homework and sprinkled a few WiFi-capable SIP phones around your home or office. In our case, we still have Grandstream’s GXP2200 Android phones scattered everywhere so it was just a matter of plugging in the WiFI adapters and rebooting. The newer GXV3240 would work just as well.1

All that remained was enabling several trunks for outbound calls. Since VoIP.ms IAX trunks support both incoming and outgoing calls, we were home free. And, with Google Voice trunks, it was simply a matter of jumping through Google’s security hoops to reenable the connections on a new IP address.

Lessons Learned. Here’s a quick checklist for those of you that think about disaster recovery for your home or for clients and businesses. Nothing beats some advance planning. If money is no object, then WiFi tethering from a smartphone with one of the major providers whose service works well in your home or office environment is the way to go. 4G is a must!

In our case, money was an object so we had the foresight to acquire a Verizon SIM card from eBay that included an unlimited data plan. With this setup, it costs only $1 a day extra to add WiFi tethering, and you can turn it off and on as often as you like without any additional fees or surcharges. There also are no additional charges for using boatloads of data! We’re actually writing this column with a tethered connection from a hotel in Washington (results above). To give you some idea of why an unlimited data plan is important, our home operation burned through 4 gigs of data in less than 24 hours once we activated WiFi tethering. Of course, there were people doing things other than making phones calls, but tethering enables 5 connections to function just about like the cable modem service you originally had in place. So expect the data usage to be substantial. Everybody likes 24/7 Internet service.

Loss of phone calls through a PBX is more of an annoyance than a crisis these days because almost everyone also has a smartphone. Even so, the SIP gotcha with Verizon Wireless was a surprise because we hadn’t really tested our super-duper emergency system in advance. That wasn’t too smart obviously. The old adage applies. Do as we say, not as we do. Unplug your cable modem or DSL connection and actually test your backup system before D-Day arrives.

On the VoIP provider end, now is the time to set up an account with a provider that offers both SIP and IAX connectivity. Step 2 is to actually configure an IAX trunk (as a subaccount to use VoIP.ms parlance) and test it. IAX trunks actually have fewer headaches with NAT, but there are only a handful of providers that still provide the service. Find one now and make certain that your primary DIDs will roll over to the IAX trunk in case of an outage. I’m always reminded that we have Mark Spencer to thank for IAX. It was his brainchild. Thank you, Mark! With VoIP.ms, you also can spoof your CallerID so that calls will still appear to originate from your primary Asterisk PBX.

Keep in mind that a VirtualBox-based Asterisk virtual machine and a Desktop computer both need an IP address and will have to be started on WLAN0 rather than ETH0. Remember, your wired connection is now dead.

You’re also going to want to acquire at least a couple of WiFi-capable SIP phones that can be connected with your Asterisk server using your WiFi HotSpot. Also make certain that you have a preconfigured IPtables firewall on your backup system. Remember, your hardware-based firewall connected to your cable modem won’t provide any protection once you switch to HotSpot operation. Lucky for you, Incredible PBX™ servers come preconfigured with a locked-down IPtables firewall and a WhiteList. Just add the new IP addresses of your server and phones, and you’re secure on the public Internet.

Finally, let’s do the HotSpot connection math. You’ll need an IP address for your desktop computer running VirtualBox. You’ll need a second IP address for the Asterisk virtual machine. Then you’ll need an IP address for every WiFi-enabled SIP phone. If the maximum number of connections is five on your HotSpot, that means you’ve got the necessary capacity for at most 3 WiFi SIP phones assuming you don’t enable a WiFi printer and if nobody else wants to use a computer during the outage. The other option is to add an inexpensive travel router with bridge mode to your mix of 5 devices. We always keep one handy for extended trips. A properly configured travel router provides an additional WiFi network with some extra WiFi connections. Good luck!



Security Alerts. Serious SSL and FreePBX security vulnerabilities have been discovered AND patched during the past week. If you have not patched your server and Asterisk, FreePBX, Apache, and/or WebMin are exposed to the public Internet, you have a serious problem on your hands. See this thread for details on the FreePBX vulnerability. And see this thread for the steps necessary to patch SSL in Asterisk, Apache, and Webmin. While Incredible PBX servers were automatically patched for the FreePBX vulnerability, the SSL issues require manual patching and an Asterisk upgrade. A script for upgrading Asterisk 11 servers is included in the message thread linked above. ALWAYS run your VoIP server behind a firewall with no Internet port exposure to Asterisk, FreePBX, SSH, or the Apache and Webmin web servers! And, if you think all of this security stuff is just a silly waste of your time, then read about the latest lucky recipient of a $166,000 phone bill.

Originally published: Monday, October 20, 2014



Need help with Asterisk? Visit the PBX in a Flash Forum.


 
New Vitelity Special. Vitelity has generously offered a new discount for PBX in a Flash users. You now can get an almost half-price DID from our special Vitelity sign-up link. If you’re seeking the best flexibility in choosing an area code and phone number plus the lowest entry level pricing plus high quality calls, then Vitelity is the hands-down winner. Vitelity provides Tier A DID inbound service in over 3,000 rate centers throughout the US and Canada. And, when you use our special link to sign up, the Nerd Vittles and PBX in a Flash projects get a few shekels down the road while you get an incredible signup deal as well. The going rate for Vitelity’s DID service is $7.95 a month which includes up to 4,000 incoming minutes on two simultaneous channels with terminations priced at 1.45¢ per minute. Not any more! For PBX in a Flash users, here’s a deal you can’t (and shouldn’t) refuse! Sign up now, and you can purchase a Tier A DID with unlimited incoming calls for just $3.99 a month. To check availability of local numbers and tiers of service from Vitelity, click here. Do not use this link to order your DIDs, or you won’t get the special pricing! Vitelity’s rate is just 1.44¢ per minute for outbound calls in the U.S. There is a $35 prepay when you sign up. This covers future usage and any balance is fully refundable if you decide to discontinue service with Vitelity.
 


Some Recent Nerd Vittles Articles of Interest…

  1. Some of our links refer users to Amazon or other service providers when we find their prices are competitive for the recommended products. Nerd Vittles receives a small referral fee from these providers to help cover the costs of our blog. We never recommend particular products solely to generate commissions. However, when pricing is comparable or availability is favorable, we support these providers because they support us. []

The 5-Minute PBX: A Fresh Look at Oracle’s VirtualBox with Incredible PBX

Today we’re paying another visit to our favorite virtual machine platform and introducing four new VoIP images that let you compare features and performance of Asterisk® 11 running atop Ubuntu® 14 or Scientific Linux™ 6.5 with FreePBX® 2.11 or the just-released version 12 release candidate. Think of Incredible PBX™ as the VoIP glue stick that assembles all the necessary VoIP components and holds them together seamlessly. As with all Incredible PBX builds, you also get the full complement of goodies including dozens of text-to-speech apps, voice dialing, SMS messaging, fax support, reminders and wakeup calls, and SECURITY! The difference with the VirtualBox® platform is you get a turnkey install of everything on any desktop computer in less than 5 minutes! That includes Windows PCs, Macs, Linux desktops, and even Solaris machines.

Is VirtualBox merely a sandbox for experimentation? Absolutely not. With any of the beefier desktop computers available today, running Incredible PBX as a 24/7 VirtualBox image is every bit as feature rich with stellar performance that’s equivalent to using dedicated hardware. And there are some added advantages. Obviously, deploying a turnkey VoIP platform in under 5 minutes is a major plus. But, unlike using a dedicated Linux platform, you also get the ability to take snapshots of your system and do full backups in minutes instead of the hours required to bring down dedicated hardware, load a different backup application using a different operating system, perform a backup, and then reboot your VoIP server. And your backups won’t just run on the one server on which the backup was performed. You can restore the backup to any other computer that can run VirtualBox. For any of you that came from a network management background, you know what a big deal that really is. And there’s one more bonus. With Incredible Backup and Restore, you can move your image to dedicated hardware running the same operating system with Asterisk 11 and the same version of FreePBX in minutes.

Need to deploy VoIP servers at dozens of sites around the globe? Not a problem with VirtualBox. Just send a preconfigured VirtualBox image to each site and install VirtualBox on a local desktop computer. In 5 minutes, you have a functional VoIP server including interconnectivity to all of your other VoIP servers with a virtual private network already in place to provide secure VoIP connectivity between all of your sites.

Are there security compromises using the VirtualBox platform? Not at all. Incredible PBX still comes preconfigured with the Linux IPtables firewall that is locked down to a whitelist of local area networks, preferred providers, and your own IP addresses. You can expand the whitelist using the add-ip and add-fqdn scripts or use PortKnocker and Travelin’ Man 4 tools to let remote users gain instant access.

Why four different Incredible PBX images? Glad you asked. Ubuntu and Scientific Linux are a bit like French and Spanish. They’re both languages for communicating, but many of the words are different. Some prefer one or the other so now you have a choice. As for the FreePBX options, let us put in a plug for the FreePBX 12 release candidate. The FreePBX Dev Team has invested thousands of hours in this new software. It shows! Please take it for a spin and give the developers some feedback. To move to Asterisk 12 and 13, you’re going to need FreePBX 12 so you might as well start getting used to it. While there are many similarities in the user interface, the under-the-covers work that the FreePBX team has invested in this new product is nothing short of amazing. There’s very little of the FreePBX 2.11 code that hasn’t been either cleaned up or completely rewritten. We think you’ll like it so give it a try. Those that need a production environment probably should stick with FreePBX 2.11 for the time being. The new Virtual Box images also give you an opportunity to compare performance between the two operating systems and the two FreePBX versions. This isn’t 1999. Take advantage of the opportunity. It only takes a few minutes to spin up a new virtual machine and go for a test drive.

Getting Started. For today, we’ll provide a refresher course on loading VirtualBox and one of the Incredible PBX virtual images. Then we want to spend a little time explaining the secret sauce that goes into building these images so that you can do it yourself either to migrate to a different network or to deploy at multiple sites. When we’re finished, you’ll know everything we’ve learned about deploying VirtualBox machines and, unlike Grandma, we won’t leave an important ingredient out of the recipe just to be sure you never forget how good Grandma’s cookies really were. So let’s get started.

Installing Oracle VM VirtualBox

Oracle’s virtual machine platform inherited from Sun is amazing. It’s not only free, but it’s pure GPL2 code. VirtualBox gives you a virtual machine platform that runs on top of any desktop operating system. In terms of limitations, we haven’t found any. We even tested this on an Atom-based Windows 7 machine with 2GB of RAM, and it worked without a hiccup. So step #1 today is to download one or more of the VirtualBox installers from VirtualBox.org or Oracle.com. Our recommendation is to put all of the 100MB installers on a 4GB thumb drive.1 Then you’ll have everything in one place whenever and wherever you happen to need it. Once you’ve downloaded the software, simply install it onto your favorite desktop machine. Accept all of the default settings, and you’ll be good to go. For more details, here’s a link to the Oracle VM VirtualBox User Manual.

Downloading the Incredible PBX Virtual Machines

A word of warning on the front end. Incredible PBX images featuring Asterisk 11 for VirtualBox are huge! The two Ubuntu images for FreePBX 2.11 and 12 are 1.5GB. The two Scientific Linux 6.5 images for FreePBX 2.11 and 12 are 2.3GB. We’ve added SourceForge hotlinks. So simply click on the desired images and download them to your desktop. Then go to lunch.

Importing & Configuring Incredible PBX Virtual Machines in VirtualBox

You only perform the import step one time. Once imported into VirtualBox, Incredible PBX is ready to use. There’s no further installation required, just like an OpenVZ template… only better. Double-click on the .ova file you downloaded to begin the procedure and load it into VirtualBox. When prompted, be sure to check the Reinitialize the Mac address of all network cards box and then click the Import button. Once the import is finished, you’ll see a new Incredible PBX virtual machine in your VM List on the VirtualBox Manager Window. We need to make a couple of one-time adjustments to the Incredible PBX VM configuration to account for differences in sound and network cards on different host machines.

Click on the Incredible PBX Virtual Machine in the VM List. Then click Settings -> Audio and check the Enable Audio option and choose your sound card. Save your setup by clicking the OK button. Next click Settings -> Network. For Adapter 1, check the Enable Network Adapter option. From the Attached to pull-down menu, choose Bridged Adapter. Then select your network card from the Name list. Then click OK. Finally, click Settings -> System, uncheck Hardware clock in UTC time, and click OK. That’s all the configuration that is necessary for your Incredible PBX Virtual Machine. The rest is automagic.

Running Incredible PBX Virtual Machines in VirtualBox

Once you’ve imported and configured the Incredible PBX Virtual Machine, you’re ready to go. Highlight IncrediblePBX Virtual Machine in the VM List on the VirtualBox Manager Window and click the Start button. The boot procedure with your chosen operating system will begin just as if you had installed Incredible PBX on a standalone machine. You’ll see a couple of dialogue boxes pop up that explain the keystrokes to move back and forth between your host operating system desktop and your virtual machine. Remember, you still have full access to your desktop computer. Incredible PBX is merely running as a task in a VirtualBox window. Always gracefully halt Incredible PBX just as you would on a dedicated computer.

Here’s what you need to know. To work in the Incredible PBX Virtual Machine, just left-click your mouse while it is positioned inside the VM window. To return to your host operating system desktop, press the right Option key on Windows machines or the left Command key on any Mac. For other operating systems, read the dialogue boxes for instructions on moving around. To access the Linux CLI, login as root with the default password: password. To access FreePBX with a browser, point to the IP address of your virtual machine and login as admin with admin password set below. For the security of your server, we recommend that you log in to the Linux CLI at least once a week so that Incredible PBX updates get applied to your server regularly. This is critically important if you care about your phone bill.

When logging in for the first time, Incredible PBX will go through some setup steps and then reboot. Login again to complete the setup. status will always provide a snapshot of your system. To shut down Incredible PBX gracefully, click in the VM window with your mouse, log in as root, and type: halt. Be sure to complete the following setup steps from the Linux CLI:

  • Change your root password: passwd
  • Set your FreePBX admin password: /root/admin-pw-change
  • Set your correct time zone: /root/timezone-setup
  • Add WhiteList entries to firewall if needed: /root/add-ip or /root/add-fqdn
  • Store PortKnocker credentials in a safe place: cat /root/knock.FAQ
  • Enable SAMBA if desired: /root/samba-enable.sh
  • Enable Incredible Fax support if desired: (script in /root)
  • Login to your NeoRouter VPN server if desired: /root/nrclientcmd

Preparing Incredible PBX Virtual Machines for Migration

As the Linux operating systems have become more turnkey, one of the shortcuts that has been implemented on both the RedHat and Debian/Ubuntu platforms is storage of your network setup so that the server reboots more quickly. While that’s fine for rebooting on the same server, it’s a real problem if you attempt to move your setup to different hardware or a new network because eth0 will not load. That means no IP address! Here are two ways to assure that things will actually work after the move. Both assume that you will have a DHCP server at the new location just as you did at your existing site.

The Easy Way. If you have console access after the VM image is restored on the new platform (which means you don’t need a network IP address for the server in order to log in as root), then the easy way to prepare any of the Incredible PBX machines for relocation is to issue the following commands before you halt the system and make a VirtualBox backup:

touch /etc/update_hostconfig
touch /etc/update_serverconfig

Once you have halted the server, edit both the sound card and network card settings and disable both of them in VirtualBox Manager. Then choose File -> Export Appliance from the VirtualBox title bar and create a .ova backup image on your desktop. You now have an image that is similar to the Incredible PBX image that you originally downloaded, except it has all of your data and settings. All you have to do is repeat the install drill above at the new location using the .ova image you created and log in with whatever your current root password happens to be. You’ll get a two-pass automatic setup just as you did when you began today’s adventure.

The only drawback to this procedure is the fact that the extension 701 and default DISA passwords will be initialized when you first boot from your .ova image at the other location. Aside from that, you’ll have a clean platform with new SSH and DUNDI credentials as well as mostly sanitized log files.

The Hard Way. The other alternative is to manually prepare your existing system for migration before you shut it down. The primary reason for doing this would be to assure that you can log in with an SSH client at the other end as soon as the server is booted. The steps differ a bit depending upon whether you’re on the Ubuntu or Scientific Linux platform. But on both platforms you need to enter the IP address from which you will log in at the new site unless it is on one of the private LAN subnets that already is whitelisted in IPtables. Just issue the command /root/add-ip and choose 0 option to enable all services for the new IP address. Then…

On the Ubuntu platform, issue the following commands:

touch /etc/update_hostconfig
touch /etc/update_serverconfig
rm -f /var/lib/dhcp/*
rm -f /etc/udev/rules.d/70*
halt

On the Scientific Linux platform, issue the following commands:

touch /etc/update_hostconfig
touch /etc/update_serverconfig
rm -f /var/lib/dhcpd/*
rm -f /var/lib/dhclient/*
rm -f /etc/udev/rules.d/70*
halt

Once you have halted the server, edit both the sound card and network card settings and disable both of them in VirtualBox Manager. Then choose File -> Export Appliance from the VirtualBox title bar and create a .ova backup image on your desktop. Now you’re an expert. Enjoy!

Originally published: Monday, September 22, 2014


Support Issues. With any application as sophisticated as this one, you’re bound to have questions. Blog comments are a terrible place to handle support issues although we welcome general comments about our articles and software. If you have particular support issues, we encourage you to get actively involved in the PBX in a Flash Forums. It’s the best Asterisk tech support site in the business, and it’s all free! Please have a look and post your support questions there. Our forum is extremely friendly and is supported by literally hundreds of Asterisk gurus.



Need help with Asterisk? Visit the PBX in a Flash Forum.


 
New Vitelity Special. Vitelity has generously offered a new discount for PBX in a Flash users. You now can get an almost half-price DID from our special Vitelity sign-up link. If you’re seeking the best flexibility in choosing an area code and phone number plus the lowest entry level pricing plus high quality calls, then Vitelity is the hands-down winner. Vitelity provides Tier A DID inbound service in over 3,000 rate centers throughout the US and Canada. And, when you use our special link to sign up, the Nerd Vittles and PBX in a Flash projects get a few shekels down the road while you get an incredible signup deal as well. The going rate for Vitelity’s DID service is $7.95 a month which includes up to 4,000 incoming minutes on two simultaneous channels with terminations priced at 1.45¢ per minute. Not any more! For PBX in a Flash users, here’s a deal you can’t (and shouldn’t) refuse! Sign up now, and you can purchase a Tier A DID with unlimited incoming calls for just $3.99 a month. To check availability of local numbers and tiers of service from Vitelity, click here. Do not use this link to order your DIDs, or you won’t get the special pricing! Vitelity’s rate is just 1.44¢ per minute for outbound calls in the U.S. There is a $35 prepay when you sign up. This covers future usage and any balance is fully refundable if you decide to discontinue service with Vitelity.
 


Some Recent Nerd Vittles Articles of Interest…

  1. Many of our purchase links refer users to Amazon when we find their prices are competitive for the recommended products. Nerd Vittles receives a small referral fee from Amazon to help cover the costs of our blog. We never recommend particular products solely to generate Amazon commissions. However, when pricing is comparable or availability is favorable, we support Amazon because Amazon supports us. []

VoIP Hardware Deal of the Year: Meet the $20 Pogoplug 4 with Incredible PBX

This week’s project is not for mere mortals. It’s for techies that also happen to be cheapskates frugal. You may recall the Pogoplug from yesteryear. Well, the Pogoplug 4 still is around and can be yours for under $20 with free 2-day shipping if you’re an Amazon Prime member. But the clock is ticking on these bad boys. Once they’re gone, they’re gone.1

UPDATE: There’s more good news. Now the cost with the Pogoplug Backup & Sharing model is just $10.95! For our purposes, the main difference is one less USB port, but it still has one which is all you need for wireless networking.

So we took the dare and decided to see whether the Pogoplug 4 could actually run Asterisk 11® and FreePBX® 2.11 and Incredible PBX™. And guess what? It may not be pretty, but it works. If you happen to have a Google Voice number and a kid away at school or a grandma in a distant city with an Internet connection or if you have a vacation home or rental property that needs phone service (but not often), then this $20 project may be for you. Configure the device, add a cheap SIP phone, and presto! You’ve got free calling in the U.S. and Canada with your very own phone number for as long as you have Internet service and Google chooses to keep paying your phone bill. :wink:

Don’t take our word for it. Call our Pogoplug for a quick IVR demo compliments of Allison:

  1. Call by Name (just say “American Airlines” to try it out)
  2. Conference Call (enter 1234# to join the conference)
  3. Wolfram Alpha (try this: “What planes are overhead?”)
  4. Lenny (the Telemarketers’ Worst Nightmare)
  5. Yahoo News Headlines
  6. Weather Forecasts (say a city and state or country)
  7. Today in History
  8. Ring the House Phones (sends you back to Lenny)

Our tip of the hat this week goes to Qui Hong without whom none of this would have been possible. His tutorial on transforming the Pogoplug 4 into a Debian server is a true masterpiece. And his blog is where we begin our adventure once you have the correct Pogoplug 4 in hand: POGO-V4-A3-01. Our link has the correct one, but double-check the Model Number just to be sure.

Converting the Pogoplug 4 into a Debian Platform

Once you have your Pogoplug, you’ll need to scurry over to Qui Hong’s blog and carefully work through his tutorial to convert your Pogoplug into a Debian server. As we’ve said many times before, if you can follow a cookie recipe and end up with edible cookies, then you can do this. Just be very careful of typos. One bad keystroke can turn your Pogoplug into a burnt cookie. Then it becomes a $40 project. :-)

Installing Incredible PBX 11.12.0 on the Pogoplug 4

Once your Pogoplug has been Debianized, there are five simple steps to get Incredible PBX up and running on your Pogoplug 4:

  1. Purchase a storage device
  2. Download Incredible PBX image
  3. Untar the image on your desktop
  4. Burn the image to an SD card
  5. Insert the SD card in the Pogoplug and boot

Choosing a Storage Platform. The first step is to purchase a suitable SD card. We recommend at least a 16GB Class 10 card from Transcend, SanDisk, or Kingston. All of them are about $10 on Amazon and many include free 2-day shipping for Prime customers.

Downloading Incredible PBX for Pogoplug. From your favorite desktop computer, download the latest build of Incredible PBX from SourceForge. Depending upon your network connection and the SourceForge mirror, it can take awhile. It’s a whopping 1.5GB image!

Untarring Incredible PBX for Pogoplug. Depending upon your desktop platform, untarring incrediblepbx.4.pogoplug.D7.latest.tar.gz is as simple as double-clicking on it in the Downloads folder (on a Mac). On the Windows platform, here are 3 utilities that will do the job. On a Linux desktop, open a Terminal window and…

tar zxvf incrediblepbx.4.pogoplug.D7.latest.tar.gz

Burning the Incredible PBX image to SD card. Once you’ve untarred the file, you’ll find two scripts that make burning the image to an SD card simple if you’re on a Mac or Linux desktop. On a Windows machine, it’s a little more complicated. Most SD cards come preformatted with a DOS partition so your Windows machine should recognize the SD card when it’s inserted. If not, format the card using a utility such as SD Card Formatter. Next, you’ll need Win32 Disk Imager to burn pogoplug.img to your card. Once the image has been transferred, gracefully unmount the card from your desktop.

Booting Incredible PBX on the Pogoplug. Insert the SD card (electronics side down) into your Pogoplug 4. Then apply power to the device after connecting an Ethernet cable to a network with Internet connectivity that can also hand out DHCP addresses. Visit your router to decipher the IP address assigned to the Pogoplug and reserve the IP address so that it doesn’t suddenly change down the road. Log into Incredible PBX as root with pogoplug as your password. Your SSH credentials, Asterisk DUNDI secrets, logs, and network connection options will be initialized. When prompted, press Enter to reboot your server. With some SD cards, you may find yourself waiting an eternity for the promised reboot. After seeing the “rebooting” message, count to ten. If your server still hasn’t rebooted, remove and reapply power. This quirk goes away after the first reboot.

After the reboot, log in again as root with password: pogoplug. Your firewall setup will be initialized to lock down your whitelist to your server’s public and private IP addresses AND the IP address of the machine from which you’re logging in. All of your FreePBX passwords will be randomized as well. The whole process only takes a few seconds.

When the second pass configuration is complete, you will be greeted by a welcoming message. STOP and read it. It has loads of important information about your server’s configuration and your next steps. Press ENTER to review status:

The Next 10 Steps. Before you do anything else, complete the following steps. It only takes a minute to secure and properly configure your server:

  1. Change your root password: passwd
  2. Change your FreePBX admin password: /root/admin-pw-change
  3. Set your correct time zone: /root/timezone-setup
  4. Expand partition to match SD card size: /root/resize-partition
  5. Add any desired IP addresses to WhiteList: /root/add-ip
  6. Decipher the randomized password for extension 701. It’s in the data field:
    mysql -uroot -ppassw0rd -e "select * from asterisk.sip where id=701 and keyword='secret'"
    
  7. Decipher the randomized voicemail password for extension 701. It’s the first entry:
    cat /etc/asterisk/voicemail.conf | grep 701 | cut -f 3 -d " "
    
  8. Enable Windows Networking, if desired: /root/samba-enable.sh
  9. Configure PPTP Network, if desired: cat /root/pptp-faq
  10. Check status to be sure everything is working: status

A Few Important Tips. Every operating system and service provider has their quirks. Ask Bill Gates! Debian and especially Comcast are no different. Fortunately, with Debian, it’s a very short list.

1. Use the following commands (only!) to shutdown and restart your server: halt and reboot. These commands are reworked in Incredible PBX to gracefully shutdown important services so that files don’t get damaged. Please use them!

2. If you ever want to move your server to a different network, complete these steps before you leave your existing network. First, using add-ip or add-fqdn, add the new WhiteList addresses for your new location using Option 0 (all privileges). Otherwise, you won’t be able to access your server once you move. Then issue the commands below. This will trigger a new Phase I update (outlined above) on the default network (eth0) using DHCP the next time you boot your Pogoplug.

touch /etc/update_hostconfig
halt

3. You really do need email connectivity to get the most out of Incredible PBX. It’s the way you receive important notifications from FreePBX, and it’s also how voicemail messages are delivered. From the Linux CLI, test your server to be sure you can send emails reliably:

echo "test" | mail -s testmessage yourname@gmail.com

After checking your spam folder, if you really didn’t get the email, it may be that your service provider is blocking downstream SMTP traffic. You can use your provider’s SMTP server as a smarthost to send out mail with Exim4. Just run the following program to reconfigure the Exim mail server: dpkg-reconfigure exim4-config. Choose the SmartHost option and enter your provider’s SMTP address, e.g. smtp.comcast.net or smtp.knology.net. Exim will restart.

4. If you’d like to activate ODBC support for Asterisk including our ODBC sample applications including Speed Dial, here are the steps. Log into your server as root and issue the following commands:

cd /root
wget http://incrediblepbx.com/odbc-pogoplug.tar.gz
tar zxvf odbc-pogoplug.tar.gz
rm odbc-pogoplug.tar.gz
./mysql-sample
./mysql-odbc
./odbc-gen.sh

Now you can try things out by dialing 222 from a phone connected to your server. When prompted for the employee number, enter 12345. Or dial 223 and, when prompted for the AsteriDex Dial Code, enter 263 (the first 3 letters of the American Airlines entry).

5. Want a list of your completed calls without using FreePBX? It’s easy:

mysql -uroot -ppassw0rd -e "SELECT SUBSTRING(calldate,6,11) AS calldate,clid,src,dst,duration from asteriskcdrdb.cdr WHERE disposition='ANSWERED' ORDER BY calldate DESC"

6. There may be situations in which it is desirable to use wireless networking instead of a wired connection with your Pogoplug. For under $10, you now can add WiFi. Here’s our post on the PIAF Forum to show you how.

Managing FreePBX with Incredible Backup and Restore

Unlike other releases of Incredible PBX, the backup and restore tools can be helpful on the Pogoplug platform. Even though Asterisk runs smoothly, calls sound great, and performance is pretty amazing, the FreePBX GUI is usable but a bit sluggish on the Pogoplug platform. If the performance bothers you, there’s a workaround. Create an Incredible Backup image of your Pogoplug, restore that image on a more normal Ubuntu 14 platform with ample RAM, and then make your FreePBX changes there using the FreePBX GUI. When you’re finished, make a backup of the changes, and then restore that backup to your Pogoplug. It sounds more complicated than it actually is. In essence, you’ll be transforming FreePBX into an Asterisk code generator. In fact, once a backup is restored, you can shut down your web server, and almost everything will still work. We were able to perform the entire procedure including updating all of the FreePBX modules and adding a Google Voice trunk in about 15 minutes using a snapshot of an Incredible PBX for Ubuntu 14 droplet we previously had created. Here are the actual steps to perform the first time:

1. Take an image snapshot of your server with Incredible Backup: /root/incrediblebackup

HINT: No need to do it initially. One is included: /backup/DU-2014.09.07.19.46-A11.12.0-F2.11-I11.12.0.tar.gz

2. Create a 512MB Droplet on Digital Ocean using Ubuntu 14 and Incredible PBX for Ubuntu. Follow the Nerd Vittles tutorial which also has a signup link to assist our projects. Coupon code: ALLSSD10 gets you a $10 credit this month. Once you’re up and running, you may want to take a snapshot so that you can quickly recreate droplets while also avoiding hourly charges for the one you’ve previously built (whether running or not!). Digital Ocean 512MB droplets cost less than a penny an hour so this is not a big ticket item. When you finish with the droplet, just destroy it (once you’ve made a snapshot!). Then the money meter stops. First time build takes about 30 minutes.

3. After creating /backup folder on DO droplet, copy your backup image from step #1 to this folder.

4. Restore the image: /root/incrediblerestore /backup/DU-somefilename.tar.gz

5. Open FreePBX on DO with a browser and log in as admin with your admin password.

6. Make all the changes desired using the tutorial below. Reload FreePBX (red bar) when prompted before exiting!

7. Make a DO backup of your new setup: /root/incrediblebackup

8. Copy the DO backup file to /backup on your Pogoplug.

9. Restore the DO backup: /root/incrediblerestore /backup/DU-somefilename.tar.gz

10. Log out and back into your Pogoplug as root.

Getting Started with VoIP and FreePBX

To access FreePBX, just point to the IP address of the server. The main control panel looks like this:

As configured, the default user account for FreePBX administration is admin. The password is whatever you set in the initial setup above. If you ever forget it, you can reset it easily: /root/admin-pw-change.

For those new to Asterisk and FreePBX, here’s a brief primer on what needs to happen before you can make and receive calls. If you have an existing Google Voice account, lucky you. This gets you a phone number for your PBX so people can call you. And it provides a vehicle to place free calls to plain old telephones in the U.S. and Canada so long as Google continues to provide the free service.

If you don’t have a Google Voice account or a shiny new smartphone, then you will need to purchase a SIP trunk from one of the numerous vendors around the world. Our favorite (because they provide terrific service at a modest price AND provide financial support to the Nerd Vittles, PBX in a Flash, and Incredible PBX projects) is Vitelity. Their special rates and a link for a discount are included at the end of today’s article.

Unlike POTS phone service from Ma Bell, the SIP World is a little different. First, you don’t need to put all your eggs in one basket. A trunk that gets you a phone number for incoming calls need not be with the same vendor that provides a trunk to place outbound calls. In fact, you may want multiple trunks for outbound calls just to have some redundancy. A list of our favorites in the U.S. and Canada is available on the PIAF Forum. Of course, there also are providers that offer all-you-can-eat calling plans. Two of our favorites are Vestalink and Future-Nine.

You’ll also need a softphone or SIP phone to actually place and receive calls. YATE makes a free softphone for PCs, Macs, and Linux machines so download your favorite and install it on your desktop.

Phones connect to extensions in FreePBX to work with Incredible PBX. Extensions talk to trunks (like Google Voice) to make and receive calls. FreePBX uses outbound routes to direct outgoing calls from extensions to trunks, and FreePBX uses inbound routes to route incoming calls from trunks to extensions to make your phones ring. In a nutshell, that’s how a PBX works.

There are lots of bells and whistles that you can explore down the road including voicemail, conferencing, IVRs, autoattendants, paging, intercoms, CallerID lookups, announcements, DISA, call parking and pickup, queues, ring groups, and on and on. And then there’s all of the Incredible PBX applications which are covered separately in this Nerd Vittles article. Once you’re comfortable with one server, you or your company will want some more. This Nerd Vittles article will walk you through interconnecting them into a seamless mesh network so that you can call from one office to another transparently. Yes, those articles were written for the Raspberry Pi. But the beauty of Incredible PBX is that it runs (almost) identically on every server platform.

Here’s our 7-Step Checklist to Getting Started with FreePBX:

1. Setting Up Google Voice. If you want free calling in the U.S. and Canada, then you’ll need an existing Google Voice account that includes the Google Chat feature. You’ll need one dedicated to Incredible PBX, or it won’t work. Log out after setting up the new Google Voice account! Also note that Google Voice may cease to function at any time after May 15, 2014. You can read all about it here.

  • Log into existing Google Voice account
  • Enable Google Chat as Phone Destination
  • Configure Google Voice Calls Settings:
    • Call ScreeningOFF
    • Call PresentationOFF
    • Caller ID (In)Display Caller’s Number
    • Caller ID (Out)Don’t Change Anything
    • Do Not DisturbOFF
    • Call Options (Enable Recording)OFF
    • Global Spam FilteringON

  • Place test call in and out using GMail Call Phone
  • Log out of your Google Voice account

If this fails, then Google may have blocked your IP address. Here’s how to unblock it.

2. Activating a Google Voice Trunk. To create a Trunk in FreePBX to handle calls to and from Google Voice, you’ll need three pieces of information from the Google Voice account you set up above: the 10-digit Google Voice phone number, your Google Voice account name, and your Google Voice password. Choose Connectivity -> Google Voice (Motif) from the FreePBX GUI. The following form will appear:

Fill in the blanks with your information and check only the top 2 boxes. If your Google Voice account name ends in @gmail.com, leave that out. Otherwise, include the full email address. Then click Submit Changes and Apply Config.

To activate a Google Voice trunk, you must restart Asterisk on the Pogoplug platform: amportal restart.

3. Setting a Destination for Incoming Calls. Now that you’ve created your Google Voice Trunk, we need to tell FreePBX how to process inbound calls when someone dials your Google Voice number. There are any number of choices. You could simply ring an extension. Or you could ring multiple extensions by first creating a Ring Group which is just a list of extension numbers. Or you could direct incoming calls to an Interactive Voice Response (IVR) system. By default, Incredible PBX is configured to route all incoming calls to extension 701. You can change the setting whenever you like by choosing Connectivity -> Inbound Routes -> Default. In the Set Destination section of the form, change the target destination from the pull-down lists.

Always click Submit and then click Apply Config to save new settings in FreePBX. This is especially important on the Pogoplug platform because you cannot actually do it once you restore the backup image to the Pogoplug.

4. Activating Additional Trunks with FreePBX. As we mentioned, there are lots of SIP providers to choose from. Once you have signed up for service, configuring the trunk is easy. Here is a quick Cheat Sheet courtesy of Kristian Hare, who translated our original setups into a spreadsheet. Just click on the image below to open it in a new window. Then click on the redisplayed image to enlarge it. The left and right cursor keys will move you around in the image. Click on the image again to shrink it.

5. Changing Extension Passwords. From the main FreePBX GUI, choose Applications -> Extensions. Then click on 701 in the Extension List on the right side of your display. You’ll see a form that looks like this:

For now, we only need to make a few changes. First, you need a very secure password for both the extension itself and your voicemail account for this extension. The extension secret needs to be a combination of letters and numbers. The Voicemail Password needs to be all numbers, preferably six or more. Replace the existing password entries with your own (very secure) entries. You also need to lock down this extension so that it is only accessible from devices on your private LAN. You do that with the deny and permit entries which currently are filled with zeroes. Leave the deny entry the way it is which tells Incredible PBX to block everybody except those allowed in the permit entry below. For the permit, we need the first three octets of your private LAN address, e.g. if your LAN is 192.168.0.something then the permit entry will be 192.168.0.0/255.255.255.0.

Finally, you need to plug in your actual email address in the Voicemail section so that voicemails can be delivered to you when someone leaves a message. You can also include a pager email address if you want a text message alert with incoming voicemails. If you want the voicemails to automatically be deleted from the server after they are emailed to you (a good idea considering the disk storage limitations of your microSD card), change the Delete Voicemail option from No to Yes. That’s it. Now save your settings by clicking the Submit button. Then reload the dialplan by clicking on the red prompt when it appears.

In case you’re curious, unless you’ve chosen to automatically delete voicemails after emailing them, you can retrieve your voicemails by dialing *98701 from any extension on your phone system. You’ll be prompted to enter the voicemail password you set up. In addition to managing your voicemails, you’ll also be given the opportunity to either return the call to the number of the person that called or to transfer the voicemail to another extension’s voicemail box. And you can always leave a voicemail for someone by dialing their extension number preceded by an asterisk, e.g. *701 would let someone leave you a voicemail without actually calling you.

6. Eliminating Audio and DTMF Problems. You can avoid one-way audio on calls and touchtones that don’t work with these simple settings in FreePBX: Settings -> Asterisk SIP Settings. Just plug in your public IP address and your private IP subnet. Then set ULAW as the only Audio Codec.

7. Configuring CallerID Superfecta. In order to match names with phone numbers, Incredible PBX includes a FreePBX application named CallerID Superfecta. Out of the box, Incredible PBX will work fine if you remember to activate CallerID Superfecta whenever you create a new Inbound Route. The CNAM entries also will be displayed in your CDR reports. For those not in the United States, you may prefer to use a lookup source for your numbers other than the ones preconfigured in CallerID Superfecta. You will find all of the available modules on the POSSA GitHub site. Just download the ones desired into /var/www/html/admin/superfecta/sources and then activate the desired sources in Admin -> CID Superfecta -> Default. You can test your results and the performance using the Debug facility that’s built into the module.

If you’re using FreePBX on an Ubuntu server in the Cloud, now is the time to drop down to the Linux command prompt, log in as root, and make a backup: /root/incrediblebackup. Copy the backup from /backup to the same folder on your Pogoplug and restore it: /root/incrediblerestore /backup/DU-somefilename.tar.gz. Then restart Asterisk on your Pogoplug: amportal restart. Finally, log out and back into your Pogoplug to assure that FreePBX will function properly on that platform.

Adding Speech Recognition for Incredible PBX Applications

We used to include Google’s Speech-to-Text service in earlier Incredible PBX builds. Unfortunately, Google has changed the rules a bit. Assuming your server still meets the “personal and development” standard, you can obtain an API key from Google and reactivate speech-to-text functionality for many of the Incredible PBX applications including Weather Reports by City (949), AsteriDex Voice Dialing by Name (411), SMS Dictator (767), and Wolfram Alpha for Asterisk (4747). To activate the STT service, just complete the steps in our tutorial. Then sign up for a Wolfram Alpha App ID (tutorial here), and run the following install scripts:

/root/wolfram/wolframalpha-oneclick.sh
cp /root/pygooglevoice/bin/gvoice /usr/bin
ln -s /usr/bin/gvoice /usr/local/sbin/gvoice
cd /root/pygooglevoice
python setup.py install
/root/smsdictator/sms-dictator.sh

Configuring a YATE Softphone for Pogoplug

As we mentioned, the easiest way to get started with Incredible PBX is to set up a free YATE softphone on your Desktop computer. Versions are available at no cost for Macs, PCs, and Linux machines. Just download the appropriate one and install it from this link. Once installed, it’s a simple matter to plug in your extension 701 credentials and start making calls. Run the application and choose Settings -> Accounts and click the New button. Fill in the blanks using the IP address of Incredible PBX on the Pogoplug, 701 for your account name, and whatever password you’re using for the extension. Click OK.

Once you are registered to extension 701, close the Account window. Then click on YATE’s Telephony Tab and place your first call. It’s that easy!

Introducing Incredible PBX 11.12.0 for the Pogoplug

For those of you that missed last week’s article on the CuBox platform and are new to Asterisk and the world of VoIP telephony, let us take a moment and explain how Incredible PBX fits into the puzzle. For lack of a better term, Incredible PBX is a turnkey aggregation in a bootable image that is based upon a superset of Debian 7 packages plus Asterisk, the FreePBX GUI, and a sizable collection of applications for the Asterisk platform. You download a tarball, decompress it, write the image file to an SD card, insert the card into your Pogoplug 4, and presto! You’ve got a turnkey PBX. Add credentials for a trunk or two to make and receive calls, connect some phones, and your SOHO office or home will come alive with a versatile PBX platform that used to cost organizations hundreds of thousands of dollars. What’s included in Incredible PBX? Glad you asked. Here’s a 3-minute video showcasing a few of our favorite Incredible PBX text-to-speech applications:


The Incredible PBX 11 Inventory. Here’s the current feature set on the Pogoplug platform. In addition to its superset of hundreds of Debian 7 packages, Asterisk 11, and FreePBX 2.11 with the Lighttpd web server, Exim 4 mail server, MySQL, PHP, phpMyAdmin, and the IPtables Linux firewall, check out these additions:

A Few Words About Security. Thanks to its Zero Internet Footprint™ design, Incredible PBX is different. It remains the most secure Asterisk-based PBX around. What this means is Incredible PBX has been engineered to sit anywhere, either behind a NAT-based, hardware firewall or directly on the Internet. No device other than those on your private LAN, a few of the major (trusted) SIP providers around the world, and those that you authorize on your WhiteList can even see your server. Additional IP addresses can be added to the WhiteList by the administrator registering new IP addresses using add-ip or add-fqdn from the Linux CLI. Read about this $100,000 VoIP phone bill, and you’ll better appreciate why WhiteList-based server security has become absolutely essential. WhiteList Security means only those devices with a registered IP address in your WhiteList can get to your server’s resources. To the NSA and everyone else, your server doesn’t even show up on the radar. Their only way to contact you is a POTS telephone using your published phone number. Our complete tutorial on Travelin’ Man 3 is available here. With Incredible PBX for the Pogoplug 4, it’s installed and preconfigured. Enjoy!


Don’t forget to List Yourself in Directory Assistance so everyone can find you by dialing 411. And add your new number to the Do Not Call Registry to block telemarketing calls. Or just call 888-382-1222 from your new number.

Originally published: Monday, September 8, 2014


Support Issues. With any application as sophisticated as this one, you’re bound to have questions. Blog comments are a terrible place to handle support issues although we welcome general comments about our articles and software. If you have particular support issues, we encourage you to get actively involved in the PBX in a Flash Forums. It’s the best Asterisk tech support site in the business, and it’s all free! Please have a look and post your support questions there. Our forum is extremely friendly and is supported by literally hundreds of Asterisk gurus. In fact, we already have a thread underway on the Pogoplug adventure.



Need help with Asterisk? Visit the PBX in a Flash Forum.


 
New Vitelity Special. Vitelity has generously offered a new discount for PBX in a Flash users. You now can get an almost half-price DID from our special Vitelity sign-up link. If you’re seeking the best flexibility in choosing an area code and phone number plus the lowest entry level pricing plus high quality calls, then Vitelity is the hands-down winner. Vitelity provides Tier A DID inbound service in over 3,000 rate centers throughout the US and Canada. And, when you use our special link to sign up, the Nerd Vittles and PBX in a Flash projects get a few shekels down the road while you get an incredible signup deal as well. The going rate for Vitelity’s DID service is $7.95 a month which includes up to 4,000 incoming minutes on two simultaneous channels with terminations priced at 1.45¢ per minute. Not any more! For PBX in a Flash users, here’s a deal you can’t (and shouldn’t) refuse! Sign up now, and you can purchase a Tier A DID with unlimited incoming calls for just $3.99 a month. To check availability of local numbers and tiers of service from Vitelity, click here. Do not use this link to order your DIDs, or you won’t get the special pricing! Vitelity’s rate is just 1.44¢ per minute for outbound calls in the U.S. There is a $35 prepay when you sign up. This covers future usage and any balance is fully refundable if you decide to discontinue service with Vitelity.
 


Some Recent Nerd Vittles Articles of Interest…

  1. Some of our links refer users to Amazon or other service providers when we find their prices are competitive for the recommended products. Nerd Vittles receives a small referral fee from these providers to help cover the costs of our blog. We never recommend particular products solely to generate commissions. However, when pricing is comparable or availability is favorable, we support these providers because they support us. []

Another Ride on the Wild Side: Introducing Incredible PBX for CentOS 6.5 and 7

If you’re not one to turn down a new challenge and you consider yourself an open source purist, then this Bud’s for you. Last month we introduced the latest and greatest Ubuntu 14 offering with Incredible PBX. And today it’s RedHat’s turn with the brand new CentOS 7. Be forewarned that CentOS 7 is a very different Linux animal than CentOS 6.5, and it’s just two weeks old. RHEL 7 is only six weeks old. There are more than a few potholes in RedHat’s latest pathway to heaven. This results in a number of direct consequences in any Asterisk® and FreePBX® communications server which depends upon CentOS 7 under the covers. For openers, anything proprietary probably won’t work for a while. That includes Digium phones and Schmooze Com’s commercial modules for FreePBX. In addition, FreePBX 2.11 and 12 were designed using PHP 5.3. CentOS 6.5 is distributed with PHP 5.4. Ubuntu 14 and Fedora 20 have PHP 5.5. There are some incompatibilities between all three versions, and many of us still are sorting out what impact those incompatibilities will have on the overall reliability of the FreePBX platform and some of the Incredible PBX applications. You can help by testing this new build in a non-production environment. 95% of the feature set available in the CentOS 6.5 platform still works fine. But finding the gotcha’s is going to take some time… and some pioneers. So… roll up your sleeves and lend us a hand!

Incredible PBX™ for CentOS 6.5 and 7 is an independent aggregation that does not rely upon PBX in a Flash™ for its roots. Because of the nature of the CentOS platform, it was built from the ground up. PBX in a Flash will follow once the stability of the CentOS 7 platform has been demonstrated. The Incredible PBX installer is pure GPL2 open source code so you are more than welcome (encouraged!) to examine it, improve upon it, and share your discoveries with all of us.

Incredible PBX for CentOS 6.5 and 7 follows our new install procedure which means it’s up to you to first create a CentOS 6.5 or 7 platform. If you prefer Scientific Linux or Oracle Linux, feel free to start there. All work equally well as a base platform. Then you run the Incredible PBX installer. After 30-60 minutes of whirring, you’ll end up with an awesome (free) state-of-the-art Asterisk-based VoIP server with the very latest version of Asterisk 11 and FreePBX 2.11 as well as dozens of turnkey Incredible PBX applications. So enjoy a nice lunch while the Incredible PBX installer works its magic. No user intervention is required during the installation procedure. All text-to-speech (TTS) applications work out of the box. You can add Google’s Speech Recognition to many Incredible PBX applications by following our 5-minute tutorial.

Installing a Base CentOS Operating System

Let’s begin by installing 64-bit CentOS 7 or 6.5 on your favorite hardware or Desktop. Or you may prefer to use a Cloud provider1 that already offers a preconfigured CentOS 7 image. In the latter case, you can skip this section.

For those using a dedicated hardware platform or wishing to install CentOS 7 as a virtual machine, the drill is the same. Start by downloading the CentOS 7 minimal ISO or the 64-bit CentOS 6.5 minimal ISO. We recommend the Everything ISO at the moment since there currently is no minimal install ISO. Burn the whopping ISO to a DVD unless you’ll be booting from the ISO on a virtual machine platform such as VirtualBox. On virtual platforms, we recommend at least 1GB RAM and a 20GB dedicated drive. For VirtualBox, here are the settings:

Type: Linux
Version: RedHat 64-bit
RAM: 1024MB
Default Drive Options with 20GB+ space
Create
Settings->System: Enable IO APIC and Disable HW Clock (leave rest alone)
Settings->Audio: Enable
Settings->Network: Enable, Bridged
Settings->Storage: Far right CD icon (choose your ISO)
Start

Boot your server with the ISO, and start the CentOS 7 install. Here are the simplest installation steps:

Choose Language and Click Continue
Click: Install Destination (do not change anything!)
Click: Done
Click: Network & Hostname
Click: ON
Click: Done
Click: Begin Installation
Click: Root Password: password, password, Click Done twice
Wait for Minimal Software Install and Setup to finish
Click: Reboot

Configuring CentOS 6.5 or 7 for Incredible PBX Installation

Now log into your server as root and issue the following commands to put the basic pieces in place and to reconfigure your Ethernet port as eth0. Make a note of your IP address so you can log in with SSH.

setenforce 0
yum -y upgrade
yum -y install net-tools nano wget
ifconfig # figure out your server IP address here
sed -i 's|quiet|quiet net.ifnames=0 biosdevdame=0|' /etc/default/grub
grub2-mkconfig -o /boot/grub2/grub.cfg
reboot

If you’re on a virtual machine platform, now would be a good time to make an export or backup of your CentOS 7 image. The minimal install is about 500MB instead of 6.6GB. Don’t forget to first remove your hardware address (HWADDR) and network UUID from /etc/sysconfig/network-scripts/ifcfg-enp0s3 or whatever file name was assigned to your hardware. The saved image will be bootable with DHCP network support anywhere down the road.

NEWS FLASH: For those wanting to test things out using VirtualBox, a Scientific Linux 7 Minimal Install image (401MB) is now available on SourceForge. It gets you to right here in the install process.


Installing Incredible PBX for CentOS 6.5 or 7

Adding Incredible PBX to a running CentOS 6.5 or 7 server is a walk in the park. To restate the obvious, your server needs a reliable Internet connection to proceed. Using SSH (or Putty on a Windows machine), log into your new server as root at the IP address you deciphered in the ifconfig step at the end of the CentOS installation procedure above.

WARNING: If you’re using a 512MB droplet at Digital Ocean, be advised that their Ubuntu setup does NOT include a swap file. This may cause serious problems when you run out of RAM. Uncomment ./create-swapfile-DO line below to create a 1GB swap file which will be activated whenever you exceed 90% RAM usage on Digital Ocean.

Now let’s begin the Incredible PBX install. Log back in as root and issue the following commands:

cd /root
wget http://incrediblepbx.com/incrediblepbx11.4.centos.tar.gz
tar zxvf incrediblepbx*
#./create-swapfile-DO
./IncrediblePBX*

Once you have agreed to the license agreement and terms of use, press Enter and go have a long cup of coffee. The Incredible PBX installer runs unattended so find something to do for the next 30-60 minutes unless you just like watching code compile. When you see “Have a nice day”, your installation is complete. Write down your admin password for FreePBX as well as your three “knock” ports for PortKnocker. If you forget them, you can reset your admin password by running /root/admin-pw-change. And you can retrieve your PortKnocker setup like this: cat /root/knock.FAQ.

Log out and back into your server as root and you should be greeted by something like this:

Or, if you started with a CentOS 6.5 or Scientific Linux 6.5 platform, you’ll see this:

1. Access the Asterisk CLI by typing: asterisk -rvvvvvvvvvv

2. Set Your Correct Time Zone by typing: /root/timezone-setup

3. Change ALL of Your Passwords by typing: /root/update-passwords

You can access the FreePBX GUI using your favorite web browser to configure your server. Just enter the IP address shown in the status display. The default username is admin and the password is what you wrote down or reset when the install completed. Now edit extension 701 so you can figure out (or change) the randomized passwords that were set up for your 701 extension and voicemail account: Applications -> Extensions -> 701. If you’re behind a hardware-based firewall, change the NAT setting to: YES.

Setting Up a Soft Phone to Use with Incredible PBX

Now you’re ready to set up a telephone so that you can play with Incredible PBX. We recommend YateClient which is free. Download it from here. Run YateClient once you’ve installed it and enter the credentials for the 701 extension on Incredible PBX. You’ll need the IP address of your server plus your extension 701 password. Choose Settings -> Accounts and click the New button. Fill in the blanks using the IP address of your server, 701 for your account name, and whatever password you created for the extension. Click OK.

Once you are registered to extension 701, close the Account window. Then click on YATE’s Telephony Tab and place some test calls to the numerous apps that are preconfigured on Incredible PBX. Dial a few of these to get started:


947 - Weather by ZIP Code
951 - Yahoo News
*61 - Time of Day
*68 - Wakeup Call
TODAY - Today in History

Now you’re ready to connect to the telephones in the rest of the world. If you live in the U.S., the easiest way (at least for now) is to set up a free Google Voice account. Google has threatened to shut this down but as this is written, it still works. The more desirable long-term solution is to choose several SIP providers and set up redundant trunks for your incoming and outbound calls. The PIAF Forum includes dozens of recommendations to get you started.

Configuring Google Voice

If you want to use Google Voice, you’ll need a dedicated Google Voice account to support Incredible PBX. If you want to use the inbound fax capabilities of Incredible Fax 11, then you’ll need an additional Google Voice line that can be routed to the FAX custom destination using FreePBX. The more obscure the username (with some embedded numbers), the better off you will be. This will keep folks from bombarding you with unsolicited Gtalk chat messages, and who knows what nefarious scheme will be discovered using Google messaging six months from now. So keep this account a secret!

We’ve tested this extensively using an existing Gmail account, and inbound calling is just not reliable. The reason seems to be that Google always chooses Gmail chat as the inbound call destination if there are multiple registrations from the same IP address. So, be reasonable. Do it our way! Set up a dedicated Gmail and Google Voice account, and use it exclusively with Incredible PBX 11. It’s free at least through 2013. Google Voice no longer is by invitation only so, if you’re in the U.S. or have a friend that is, head over to the Google Voice site and register.

You must choose a telephone number (aka DID) for your new account, or Google Voice calling will not work… in either direction. Google used to permit outbound Gtalk calls using a fake CallerID, but that obviously led to abuse so it’s over! You also have to tie your Google Voice account to at least one working phone number as part of the initial setup process. Your cellphone number will work just fine. Don’t skip this step either. Just enter the provided 2-digit confirmation code when you tell Google to place the test call to the phone number you entered. Once the number is registered, you can disable it if you’d like in Settings, Voice Setting, Phones. But…

IMPORTANT: Be sure to enable the Google Chat option as one of your phone destinations in Settings, Voice Setting, Phones. That’s the destination we need for The Incredible PBX to work its magic! Otherwise, all inbound and outbound calls will fail. If you don’t see this option, you may need to call up Gmail and enable Google Chat there first. Then go back to the Google Voice Settings.

While you’re still in Google Voice Settings, click on the Calls tab. Make sure your settings match these:

  • Call ScreeningOFF
  • Call PresentationOFF
  • Caller ID (In)Display Caller’s Number
  • Caller ID (Out)Don’t Change Anything
  • Do Not DisturbOFF
  • Call Options (Enable Recording)OFF
  • Global Spam FilteringON

Click Save Changes once you adjust your settings. Under the Voicemail tab, plug in your email address so you get notified of new voicemails. Down the road, receipt of a Google Voice voicemail will be a big hint that something has come unglued on your PBX.

One final word of caution is in order regardless of your choice of providers: Do NOT use special characters in any provider passwords, or nothing will work!

Now you’re ready to set up your Google Voice trunk in FreePBX. After logging into FreePBX with your browser, click the Connectivity tab and choose Google Voice/Motif. To Add a new Google Voice account, just fill out the form. Do NOT check the third box or incoming calls will never ring!

IMPORTANT LAST STEP: Google Voice will not work unless you restart Asterisk from the Linux command line at this juncture. Using SSH, log into your server as root and issue the following command: amportal restart.

If you have trouble getting Google Voice to work (especially if you have previously used your Google Voice account from a different IP address), try this Google Voice Reset Procedure. It usually fixes connectivity problems.

Troubleshooting Audio and DTMF Problems

You can avoid one-way audio on calls and touchtones that don’t work with these simple settings in FreePBX: Settings -> Asterisk SIP Settings. Just plug in your public IP address and your private IP subnet. Then set ULAW as the only Audio Codec.

A Few Words about the Incredible PBX Security Model for CentOS 7

Incredible PBX for CentOS 7 joins last month’s Ubuntu 14 build as our most secure turnkey PBX implementation, ever. As configured, it is protected by both Fail2Ban and a hardened configuration of the IPtables Linux firewall. The latest release also includes Port Knocker for simple, secure access from any remote computer or smartphone. You can get up to speed on how the technology works by reading the Nerd Vittles tutorial. Your Port Knocker credentials are stored in /root/knock.FAQ together with activation instructions for your server and mobile devices. The NeoRouter VPN client also is included for rock-solid, secure connectivity to remote users. Read our previous tutorial for setup instructions. As configured, nobody can access your PBX without your credentials AND an IP address that is either on your private network or that matches the IP address of your server or the PC from which you installed Incredible PBX. You can whitelist additional IP addresses by running the command-line utility /root/add-ip. You can remove whitelisted IP addresses by running /root/del-acct. Incredible PBX is preconfigured to let you connect to many of the leading SIP hosting providers without additional firewall tweaking. We always recommend you also add an extra layer of protection by running your server behind a hardware-based firewall with no Internet port exposure, but that’s your call. And it’s your phone bill. :wink:

The IPtables firewall is a complex piece of software. If you need assistance with configuring it, visit the PIAF Forum for some friendly assistance.

Incredible Backup and Restore

We’re pleased to introduce our latest backup and restore utilities for Incredible PBX. Running /root/incrediblebackup will create a backup image of your server in /tmp. This backup image then can be copied to any other medium desired for storage. To restore it to another Incredible PBX 11 server, simply copy the image to a server running Asterisk 11 and FreePBX 2.11 and run /root/incrediblerestore. Doesn’t get much simpler than that.

Incredible PBX Automatic Update Utility

Every time you log into your server as root, Incredible PBX will ping the IncrediblePBX.com web site to determine whether one or more updates are available to bring your server up to current specs. We recommend you log in at least once a week just in case some new security vulnerability should come along.

In the meantime, we encourage you to sign up for an account on the PIAF Forum and join the discussion. In addition to providing first-class, free support, we think you’ll enjoy the camaraderie.

Incredible PBX: Pick Your Poison

We fully appreciate that Bleeding Edge technology isn’t right for everyone. Fortunately, with Incredible PBX, you have lots of options, and they’re all free. Come join the party and see what you’ve been missing.


Originally published: Monday, July 20, 2014


Support Issues. With any application as sophisticated as this one, you’re bound to have questions. Blog comments are a terrible place to handle support issues although we welcome general comments about our articles and software. If you have particular support issues, we encourage you to get actively involved in the PBX in a Flash Forums. It’s the best Asterisk tech support site in the business, and it’s all free! Please have a look and post your support questions there. Unlike some forums, ours is extremely friendly and is supported by literally hundreds of Asterisk gurus and thousands of users just like you. You won’t have to wait long for an answer to your question.



Need help with Asterisk? Visit the PBX in a Flash Forum.


 
New Vitelity Special. Vitelity has generously offered a new discount for PBX in a Flash users. You now can get an almost half-price DID from our special Vitelity sign-up link. If you’re seeking the best flexibility in choosing an area code and phone number plus the lowest entry level pricing plus high quality calls, then Vitelity is the hands-down winner. Vitelity provides Tier A DID inbound service in over 3,000 rate centers throughout the US and Canada. And, when you use our special link to sign up, the Nerd Vittles and PBX in a Flash projects get a few shekels down the road while you get an incredible signup deal as well. The going rate for Vitelity’s DID service is $7.95 a month which includes up to 4,000 incoming minutes on two simultaneous channels with terminations priced at 1.45¢ per minute. Not any more! For PBX in a Flash users, here’s a deal you can’t (and shouldn’t) refuse! Sign up now, and you can purchase a Tier A DID with unlimited incoming calls for just $3.99 a month. To check availability of local numbers and tiers of service from Vitelity, click here. Do not use this link to order your DIDs, or you won’t get the special pricing! Vitelity’s rate is just 1.44¢ per minute for outbound calls in the U.S. There is a $35 prepay when you sign up. This covers future usage and any balance is fully refundable if you decide to discontinue service with Vitelity.
 


Some Recent Nerd Vittles Articles of Interest…

  1. Some of our links refer users to Amazon or other service providers when we find their prices are competitive for the recommended products. Nerd Vittles receives a small referral fee from these providers to help cover the costs of our blog. We never recommend particular products solely to generate commissions. However, when pricing is comparable or availability is favorable, we support these providers because they support us. []

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