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Keep On Trunkin’: Free International VoIP Calling Returns



Today we’re taking a fresh look at the international calling marketplace by updating the best VoIP deals available. FreeVoipDeal once again takes the prize with the best selection of "free" international calling destinations at the lowest prices. Below we’ll provide a quick tutorial to transform your Incredible PBX server into an international calling platform at minimal cost.

Here’s How It Works. For every 10 euros ($10.72) you deposit into your account, you’ll get 300 minutes a week of free calls to a specific list of countries for 120 days. After you exhaust your free minutes, calls to the "free" countries revert to their standard VoIP rates. You can also call anywhere else in the world at very reasonable per minute rates that compare favorably with other SIP providers around the world. The beauty of a PBX and SIP trunks is you can mix and match as many providers as you like to take advantage of favorable calling rates to multiple countries. We’ll walk you through the FreeVoipDeal trunk setup below.

Betamax 101. There are a few things you need to know about the so-called Betamax VoIP services up front. Most importantly, they change rates and free countries more frequently than college kids change partners. The calling rate to some country from some Betamax provider changes almost every day because Betamax has dozens of companies offering similar services with differing rates and freebies. Here’s an very old spreadsheet that will give you a good idea of what you’re up against. Don’t depend upon it for the current rates. You’ll need to visit the actual site(s) for their current rate tables or visit this site (not) maintained by Betamax for a country-by-country comparison by provider. That’s another way of saying DON’T BLAME US IF YOUR 3-HOUR CALL TO ANTARCTICA CHANGED FROM 20¢ PER MINUTE TO $1 PER MINUTE OVERNIGHT. IT PROBABLY WON’T, BUT IT MIGHT.

One other word of warning. Some Betamax sites (marked with a red asterisk in the Betamax country table) such as powervoip.com have good calling rates, but they tack on a 3.9¢ connection fee to every call. If you make lengthy calls, it’s not a big deal. If you make numerous short calls, it drives your discount calling rates through the roof. Before making a lengthy call to a remote destination, spend the two minutes it takes to look up the current rate on the actual Betamax web site and take a snapshot of the page for your records. Here’s another tip. If you make frequent calls to Antarctica, spend a little time doing your homework. Review the latest Betamax spreadsheet to track down the cheapest rates. Then double-check the actual sites for the current rates. There’s a $100+ difference in the cost of a 3-hour call at €.20/minute from some Betamax sites versus the €.70/minute rate at some other Betamax sites. THIS OFTEN CHANGES! HINT: Don’t use FreeVoipDeal for Antarctica.

Today we’ll be focusing on the company we’ve tracked for many years, FreeVoipDeal.com. Except for the domain name, the setup with other Betamax providers is similar but not identical. And, of course, you’ll have to kick in another deposit to make free calls from each site. The length of the Freebie period also may vary so read the terms carefully. FreeVoipDeal actually hasn’t changed much since our first visit about five years ago. In fact, we still had most of our ten euro credit so we could play all we wanted even though the calls were no longer free since our four month window has long since expired.

Here’s the February 23, 2019 Freebie list by country. Don’t depend upon it! Check their actual web site or the Betamax country summary for current freebies and current rates. Here’s a great trick to remember. When you visit the FreeVoipDeal Rate Table, click on the Out of Minutes tab for a quick listing of all the Free Calling Countries as well as the rates once you’ve used up your four months or 300 weekly minutes of free calls. With few exceptions, most of the "free countries" still have a rate of 1.1¢ per minute even after you run out of minutes.

 

How Free International Calling Works

Placing international calls through FreeVoipDeal can be done in a number of ways. That’s the real beauty of a PBX. First, you can either load an app to make the calls if your smartphone or PC supports it. With Incredible PBX, you can use a SIP phone to dial a FreeVoipDeal number directly through your PBX, or you can dial a DISA access number or SIP URI from anywhere to connect to your PBX and then enter your DISA password after which you will get a second dial tone to place an international call using your FreeVoipDeal trunk. The beauty of the DISA approach is you can call into your PBX from any telephone to place free or dirt cheap international calls.

Using Incredible PBX 13 and DISA for Calling

On the Incredible PBX platform, you can use the DISA application to provide secondary dialtone for processing international calls. A phone number and trunk will receive incoming calls bound for DISA from your cellphone. An inbound route will only forward incoming calls to DISA that match your cellphone number. A secondary trunk from FreeVoipDeal or other providers will be used to process outgoing international calls that are dialed using DISA. We’ll create an outbound route or rule for every country to which you want to authorize international calling. Each of these outbound routes will point to the least expensive (or free) trunk to complete the call. In the VoIP world, you actually could have dozens of outbound trunks that handle international calls based upon the country codes of each international call. This lets you take advantage of the best calling rates for each country. We will block international calls to country codes not specifically authorized.

Just to restate the obvious, a misconfigured DISA application that allows the world to make international calls on your nickel can get expensive quickly. We’ll protect today’s DISA setup for Incredible PBX with three layers of protection. First, we’ll require that the CallerID of the incoming call match your cellphone number. While this isn’t failsafe since CallerID numbers can be spoofed, it does reduce the risk considerably. Second, to make DISA calls, you’ll have to know the incoming phone number or SIP URI managing DISA on your PBX. And third, you’ll have to enter the correct DISA PIN before being prompted for an international number to dial. Without all three, nobody gets to make an international call on your nickel. Just remember, compromising DISA on your PBX is just as risky as handing out your credit card to a stranger so follow the setup steps below carefully. And then TEST, TEST, TEST to make sure strangers can’t access your DISA setup. We’ll show you how.

Here’s an overview of the DISA setup drill once you have Incredible PBX running. We’ll walk through each of the six steps below. Don’t get frustrated. There are a number of steps, but none of them are difficult. Just pretend you’re baking cookies and don’t skip any steps.

  1. Set Up Your Trunk to Process Incoming DISA Calls
  2. Set Up Your Trunk(s) to Process Outgoing International Calls
  3. Configure DISA with a Very Secure Password
  4. Configure an Inbound Route to Limit Incoming DISA Calls to Your Cellphone #
  5. Configure an Outbound Route for Each International Country Code
  6. Test, Test, Test

1. Setting Up Incoming DISA Call Trunk

Before you can make calls to your PBX, it’ll need a phone number (known affectionately as a DID). As installed, Incredible PBX includes preconfigured SIP trunks from about a dozen SIP providers. All you’ll need is credentials from the company you wish to use. You can obtain a free DID here. To obtain your own SIP URI, read our tutorial.

2. Trunk Setup for International Calling

We’re going to walk you through setting up a trunk with FreeVoipDeal to handle free international calls to certain countries documented above. This may not be the best fit for you depending upon the international destinations you wish to call. Figure that out first! Then adjust the trunk settings below to match each SIP provider trunk you wish to create. There’s no limit to the number you can have. And, with most of these providers, you pay by the minute for international calls anyway so there is no harm in configuring multiple trunks to take advantage of the best rates calling the countries of your choice. The same applies to all-you-can-eat and "free" trunks except there are varying fees for using the services so you’re probably not going to want a dozen of them even if some of the calls are free after making a periodic deposit. Start with the pink and green entries on the old spreadsheet we referenced for the cheapest historical rates and then visit the actual sites and read the fine print.

To add new trunks to Incredible PBX, use a browser to access the IP address of your server. Login with the default username of admin and the password that you set when your install completed. You can change it with the admin-pw-change script in /root. Once the dashboard appears, click the Connectivity tab and choose Trunks -> Add SIP (chan_sip) Trunk.

For Trunk Name, enter FreeVoipDeal. In the Dialed Number Manipulation Rules section, add a rule for each country code you wish to activate. You can decipher the Country Code for any country at this link. For example, for the United Kingdom, you’d enter a rule like this where 44 is the Country Code and each X represents a required digit in the local area code and phone number. The trailing period means the number includes one or more additional digits. NOTE: DISA calls will not have to be prefixed with 011 to place international calls. Just enter the country code and number to be called. And, we are told that only 441, 442, and perhaps 443 calls to the U.K. are free since those are the designated landline prefixes.




If there are other countries, you wish to support with this trunk provider, you’d click Add More Dial Pattern Fields and insert an additional rule for each country following the example above. If you’ll be using this trunk to make calls in the U.S. and Canada as well, the correct Match Pattern is 1NXXNXXXXXX, and calls will need to be dialed with the 1 to avoid conflicts with international dialing.

Next, we need to enter the Outgoing Settings. For the Trunk Name, enter freevoipdeal. Clear out the entries in Peer Details section and enter the following using your actual FreeVoipDeal credentials for yourusername and yourpassword:

authuser=yourusername
username=yourusername
secret=yourpassword
type=peer
qualify=yes
nat=yes
insecure=port,invite
host=sip.freevoipdeal.com
fromdomain=sip.freevoipdeal.com
dtmfmode=auto
disallow=all
canreinvite=no
allow=alaw&ulaw

Finally, clear out the default entries in User Details and click the Submit Changes button and then red Apply Config button to save your new trunk.

Spoofing Your CallerID. When setting up your FreeVoipDeal account, you can set up one or more numbers to use as your CallerID number on FreeVoipDeal calls. You simply verify the number with a code sent by SMS or phone call from their service. Once you’ve gone through the verification procedure, you can spoof the outbound CallerID on FreeVoipDeal calls using your actual cellphone number. Just add the following entries to your Trunk settings replacing 9991234567 with your cellphone number. Special thanks to @hillclimber on the PIAF Forum for the tip.

fromuser=0019991234567
sendrpid=yes

3. Configuring DISA for International Calling

In the Incredible PBX GUI, we’ll set up DISA by clicking the Applications tab and choosing DISA. Add your new DISA configuration by following this sample. Use a VERY secure password. It’s your phone bill. Once you’ve finished, click the Submit Changes button and then the Apply Config button to save your new DISA setup.



4. Inbound Routing of DISA Calls

Here’s where we lock down your setup so that Incredible PBX only accepts DISA calls from your cellphone number. If you want to allow additional people to use your DISA setup or if you have multiple cellphones, then simply create multiple inbound routes with the 10-digit numbers of each phone to be supported.

In the Incredible PBX GUI, we’ll set up a new Inbound Route by clicking the Connectivity tab and choosing Inbound Routes. If you plan to support multiple phones, then create multiple inbound routes and give each of them a unique Description and CallerID Number that matches the phone number of the cellphone to be supported. Be sure to check the CID Priority Route checkbox and set the correct Destination for your incoming calls. Just fill in the blanks appropriately using this template as a guide. Once you’ve finished, click the Submit button and then the Apply Config button to save your new Inbound Route.



5. Outbound Routing by Country Code

The DISA application is going to obtain the phone number to be dialed and will pass that to the Outbound Routes module. The job of the Outbound Routes module is to examine the phone number passed to it from DISA to figure out which trunk to use to make the outbound call. It then will pass the call to the appropriate trunk which sends the outgoing call on its way to the destination.

For each Dialed Number Manipulation Rule in every Trunk that you set up in Step #2 above, you’ll need a matching Outbound Route if your PBX is used to place calls using multiple trunks. If you’re only using one provider for all of your outbound calls, then we can use a more generic Outbound Route. It’s always a good idea to create the one-to-one match between Outbound Routes and Trunks to make certain that outbound calls are sent to the correct Trunk for processing. So let’s do that using the U.K. trunk we created above.

In the Incredible PBX GUI, we’ll set up a new Outbound Route by clicking the Connectivity tab and choosing Outbound Routes. When the template appears, notice in the far right column that there’s a listing of all your existing Outbound Routes. Calls are actually processed sequentially using the order that these Outbound Routes appear in the list. If there’s no number match in the top route, processing drops to the next route in the list until there is a match AND a successful connection. You can adjust the sequence by dragging the Outbound Routes to a different position in the priority list.

It’s important to use specificity in your Outbound Routes (especially with International calling) to make certain that a call isn’t inadvertently processed by some other trunk. The easiest way to do this is to require the Outbound Route Match Pattern for U.K. calls to be at least 11 digits, e.g. 44XXXXXXXX. (the trailing period is important in that it requires at least one more digit for a match). And we can force a Hangup if the FreeVoipDeal trunk is not available for some reason by adjusting the Destination on Congestion setting. This keeps the call routing from dropping down to the next available Outbound Route in the list if FreeVoipDeal happens to be off-line at some point. So our Outbound Route for U.K. calls should look something like this:



The final step is to move the new Outbound Route for U.K. calls to the top of the Outbound Routes listing in the right column to assure that it is processed first. Once you’ve done that, click the Submit Changes button and then the Apply Config button to save your new Outbound Route AND the adjusted Outbound Route Priority List.

Another alternative in creating Outbound Routes is to use a Dial Prefix that never matches a real phone number to direct calls to a particular trunk. For example, you might use *8 as a dial prefix for FreeVoipDeal calls. By placing *8 in the Prefix column of the Dial Pattern, it will get stripped off before the number is actually passed to the FreeVoipDeal trunk for processing. We actually prefer this setup because it adds an additional layer of security for international calls. If someone were to break into your DISA application by knowing your cellphone number AND your DID AND your DISA password, it’s unlikely they’d also know to prefix outgoing international calls with some arbitrary dial prefix. Just don’t use *8 in case they’re a Nerd Vittles reader. 😉

6. Test, Test, Test!

The easiest way to test the new setup is to place a couple of calls and to watch the Asterisk CLI (asterisk -rvvvvvvvvvv) and see how the calls are processed and who answers at the other end. Then you can apologize for reaching the wrong number.

You can make up your own test methodology, but here’s one that works for us. There are several tests you need to make. First, call your Incredible PBX DID from your authorized cellphone and enter a correct DISA password to see if you get dial tone to make an international call. Then repeat the drill with an invalid password and make sure you don’t get a dial tone. Next, call your Incredible PBX DID from a phone other than your authorized cellphone. You should not get a prompt for a DISA password. Finally, we use the first three digits of a U.K. number to identify a matching NANPA area code. Then, we find hotels in the two matching cities. For example, one might attempt to call a hotel in Bath, England (44 1… ……) and a hotel in Bermuda (441-…-….). The U.K. call should go through, and the Bermuda call should fail. If you pass all three tests with flying colors, you’re good to go.

Using FreeVoipDeal’s MobileVoIP App

FreeVoipDeal also offers a MobileVoIP app that can be used directly on your smartphone (Android, iOS, and Windows phone versions available) using any Wi-Fi, UMTS, 4G/LTE, 3G, GPRS or EDGE connection. The drawback is the lack of the three extra layers of security protection that Incredible PBX using DISA offers. MobileVOIP lets you log in with your registered Betamax credentials and offers the option to use your existing VoIP credit from your smartphone. The downside is that anyone with the app and your credentials can call anywhere and talk for as long as they like on your nickel using any of your registered CallerIDs. You’ve been warned. For more information or to download the app for your mobile device, go here. Remember to dial the "+1″ country code prefix for U.S./Canada calls.

Originally published: Monday, April 24, 2017  Updated: Monday, February 25, 2019


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 VoIP-info Forum.


 

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1 Comment

  1. Just a quick correction, voip-comparison.com is NOT maintained by Betamax Gmbh (or the related companies Finarea SA or Delmont sarl) but rather by some guy in Germany who picked up where I left off many years ago, with a comparison table on voip-info.org. The Facebook page you linked to is maintained by the same guy.

    There is NO official Betamax comparison site, so the accuracy of the comparisons on voip-comparison.com always depends on the Finarea/Betamax/Delmont services not changing the format of their website, etc.

    This is a most useful tool if using Betamax/Delmont VoIP services: http://www.timedicer.co.uk/programs/help/dellmont-credit-checker.sh.php

    Thanks for your blog and especially your Asterisk contributions.

    Wolf

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