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Turning Incredible PBX into a Lean, Mean Asterisk Machine

Mexican Food isn’t for everyone and once in a while we get asked for a tutorial showing how to take the Whole Enchilada version of Incredible PBX® 2020 back to its roots as a Lean, Mean Asterisk® Machine. Still others want to better understand how all the Incredible PBX 2020 pieces are put in place so that unused components can be removed easily. So today’s your lucky day as we roll back the shroud of secrecy surrounding the open source Incredible PBX 2020 installer. We’re being facetious, of course, because the source code has always been available for everyone to examine and modify to your heart’s content. But we appreciate that some may not be comfortable tackling this independently for fear of breaking something.

The short answer is that most of the Incredible PBX additions to Asterisk and FreePBX® are housed in the extensions_custom.conf file in /etc/asterisk and the collection of files in /var/lib/asterisk/agi-bin. But deleting those files would be a very bad idea and most certainly would break much of the functionality of the underlying Asterisk and FreePBX platform.

Our approach today is to document how to delete each piece of the Incredible PBX puzzle so that you can keep the features you like and remove the rest. We’ve resisted documenting some of this previously because these components don’t typically hurt anything or consume processing resources if they’re not used. But we appreciate there are purists that want a pristine clean platform to call their own. So… here goes.

Before we get started, let me document how most of the Incredible PBX contexts in extensions_custom.conf were designed so that they could easily be removed or updated. At the top and bottom of each context, you’ll find two lines that look something like this:

;# // BEGIN Redialer
; Asterisk dialplan code goes here
;# // END Redialer

Using the label Redialer, the entire context can be removed with a single sed command:

sed -i '\:// BEGIN Redialer:,\:// END Redialer:d' extensions_custom.conf

As we walk through the various functions and contexts below, we’ll use sed Label:d as a short-hand notation for the context removal procedure in the steps that follow.

Finally, before you make any changes to your server, please MAKE A BACKUP. For the latest scripts, issue the following commands after logging into the Linux CLI as root:

cd /root
wget http://incrediblepbx.com/incrediblebackup2020.tar.gz
tar zxvf incrediblebackup2020.tar.gz
rm -f incrediblebackup2020.tar.gz

Removing Telephone & Web Reminder Apps

1. From /etc/asterisk/extensions_custom.conf, sed Reminders:d
2. From /var/lib/asterisk/agi-bin, remove checktime.php, checkdate.php, reminder.php, run_*
3. From /var/lib/asterisk/sounds/en/custom, rm -f remind*
4. From /var/www/html, rm -rf reminders
5. From /var/spool/asterisk, rm -rf recurring AND rm -rf reminders
6. fwconsole ma delete reminders
7. fwconsole reload
8. asterisk -rx "dialplan reload"
9. fwconsole restart

Much of the Telephone Reminders code is more than a decade old and was installed long before the current sed design with labels was implemented. So the final step in removing all of the reminders contexts is to edit extensions_custom.conf and manually delete all commands within the following contexts and then reload the Asterisk dialplan in the usual way: asterisk -rx "dialplan reload"


Removing AsteriDex & AsteriDex SpeedDialer Apps

1. From /etc/asterisk/extensions_custom.conf, sed AsteriDex SpeedDial:d
2. From /etc/asterisk/extensions_custom.conf, sed Call by Code:d
3. From /etc/asterisk/extensions_custom.conf, sed Call by Name:d
4. From /var/lib/asterisk/agi-bin, remove asteridex.php
5. From /var/lib/asterisk/agi-bin, remove nv-call*
6. mysql -u root -ppassw0rd -e "drop database asteridex"
7. From /var/www/html, rm -rf asteridex4
8. fwconsole ma delete asteridex
9. fwconsole reload
10. asterisk -rx "dialplan reload"
11. fwconsole restart

Removing SMS Dictator App

1. From /etc/asterisk/extensions_custom.conf, sed SMS Dictator:d
2. From /var/lib/asterisk/agi-bin, rm -f sms*
3. asterisk -rx "dialplan reload"

Removing Travelin’ Man 4 Dialer App

1. From /etc/asterisk/extensions_custom.conf, sed Travelin’ Man 4 Dialer:d
2. From /etc/asterisk, rm -rf tm4
3. mysql -u root -ppassw0rd -e "drop database TravMan4″
4. asterisk -rx "dialplan reload"

Removing Wolfram Alpha App

1. From /etc/asterisk/extensions_custom.conf, sed Wolfram Alpha:d
2. From /var/lib/asterisk/agi-bin, rm -f wolfram.sh
3. From /var/lib/asterisk/agi-bin, rm -f 4747*
4. asterisk -rx "dialplan reload"

Removing Yahoo News App

1. From /etc/asterisk/extensions_custom.conf, sed nv-news-yahoo:d
2. From /var/lib/asterisk/agi-bin, rm -f nv-news*
3. asterisk -rx "dialplan reload"

Removing Weather Apps

1. From /etc/asterisk/extensions_custom.conf, sed Weather by ZIP:d
2. From /var/lib/asterisk/agi-bin, rm -f nv-weather*
3. From /var/lib/asterisk/agi-bin, rm -f zipcod*
4. asterisk -rx "dialplan reload"

Removing Today in History App

1. From /etc/asterisk/extensions_custom.conf, sed Today in History:d
2. From /var/lib/asterisk/agi-bin, rm -f nv-today*
3. rm -f /tmp/today
4. asterisk -rx "dialplan reload"

Removing Tides App

1. From /etc/asterisk/extensions_custom.conf, sed xTide:d
2. From /var/lib/asterisk/agi-bin, rm -f xtide*
3. mysql -u root -ppassw0rd -e "drop database tides"
4. asterisk -rx "dialplan reload"

Removing SIP URI App

1. From /etc/asterisk/extensions_custom.conf, sed SIP URI Mod1:d
2. From /etc/asterisk/extensions_custom.conf, sed SIP URI Mod2:d
3. asterisk -rx "dialplan reload"

Removing Redialer App

1. From /etc/asterisk/extensions_custom.conf, sed Redialer:d
2. asterisk -rx "dialplan reload"

Removing Google TTS Apps

1. From /var/lib/asterisk/agi-bin, rm -f googletts*

Removing Stocks App

1. From /var/lib/asterisk/agi-bin, rm -f nv-stock*

Removing Dictionary App

1. From /var/lib/asterisk/agi-bin, rm -f nv-dict*

Removing the ODBC Demo Apps

As installed, Incredible PBX reserves extensions 222 and 223 for a couple of applications demonstrating the use of ODBC connections with Asterisk. Some may prefer to use these extensions for other purposes so you have two choices. You can either renumber the extensions, or you can delete the demo applications entirely. To renumber the extensions, edit /etc/asterisk/odbc.conf. Then search and replace the 222 and 223 entries. To remove the applications entirely, simply rename the odbc.conf file to odbc.conf.orig. Then reload the dialplan: asterisk -rx "dialplan reload"

We recommend you revisit this article in a week or two to see if other additions and corrections have been made. If so, they will appear below here. Enjoy!


Originally published: Monday, June 1, 2020

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