Page Comparison

<div id="fb-root"></div>
<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = 'https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.11';
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

...

Part 1: AGI in “Custom Application”

...

This Dialplan is assigned to user 102.
NoOp function serves to display the variable value in logs:

Conditions in Dialplan

You can use execute a conditional jump to another Dialplan procedure, based on the boolean result (true or false) of the Gotoif function.

Syntax to execute a jump: GotoIf(condition?label1:label2)

...

The condition syntax is the following one: $[expr1operatorexpr2], where

• expr can be a variable, a value, a function, an expression (expressions can be nested)

• operator as a rule it is relational (comparison) operator ( =, <>..); for nested expressions it’s possible to use logical operators AND, OR, NOT (explained below)

...

expr1 >= expr2 → greater than or equal

Example:  

In this example:

set(FOO=1) - we introduce FOO variable with the value 1.

...

• condition: $[${FOO} = 1]

• label1: users,101,1

• label2: users,102,1

Example 1: Check  if a device is INUSE before sending a call  

GotoIf($[ ${DEVICE_STATE(SIP/100)} == NOT_INUSE ]?context,101,1)

The function DEVICE_STATE(SIP/100) returns the state of the device, results can be:
UNKNOWN | NOT_INUSE | INUSE | BUSY | INVALID |UNAVAILABLE | RINGING | RINGINUSE | ONHOLD

Example 2: Check  if there are available users in a call group before sending a call

GotoIf($[ ${QUEUE_MEMBER(2,ready)} == 0 ]?context,101,1)

The function QUEUE_MEMBER(2,ready) count the number of ready members of a call group which are identified by the ID 2

Example 3: Check  if the CALLERID(number) matches a regular expression

GotoIf($[${REGEX("^0[6-7][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$" ${CALLERID(number)})}]?noanswer,01,1)

The function REGEX("<regular expression>" <data>)returns true if the regular expression matches the data.  

In the example above we check  if the caller is a French mobile phone:
Start by 0 then a 6 or 7 then followed by 8 digits => ^0[6-7][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$

...

• Set(CallCount= - sets the value of a variable called "CallCount" (can then be used to check later with the 'jump to if' application
• ${SHELL(value=`sqlite3 /mnt/cdr/cdrdb  - executes a Linux SHELL command (sqlite query in this case)
• "select count() from cdr where - gets count of calls from cdrdb
• c_from = '+1${CALLERID(num)}' - checks cdrdb c_from field (contains caller ID numbers; note that +1 in our example is a prefix – change it with your country's prefix or remove it)
• answer = '' - checks cdrdb answer field (contains answer timestamps of previous calls; blank if call was not answered)
• start > Datetime('now' ,'localtime','-5 minutes');"` - checks start field in cdrdb for a date/timestamp within the past 5 minutes (notice the -5 minutes portion)
• && echo $value - syntax required by the SHELL command to return the value of the linux shell command that is being executed

...

Set(foo=${CURL(http://192.168.1.1/echo.php)})

Dial(SIP/${foo})

Add parameters in CURL url

In the following example the PHP script returns “102” if “callernum” parameter is 0612345678, else the script returns “101”.

...

SayDigits(digits)
Says the digits, one by one, digits can be a variable.

SayNumber(number, gender)
Says number
gender is "f" for female voice; "m" - for male ;"c" - for neutral

Example:

Read(FOO,00000/smartdialplan/numcommande,3,,,10)

SayNumber(${FOO},f)

Dial(SIP/${FOO})

Implementation of Smart Dialplan: limited access to the phone based on the amount of credits purchased

...

You need to:

• Upload PHP AGI (phpagi.sourceforge.net) to /var/www/agi/phpagi/phpagi.php

• Upload test script to /var/www/scripts/test.php

...

Then you can use “remote script” in dialplan, example: Remote script

Microsoft SQL Integration

Create /rw2/var/www/scripts/sqllookup.php

...

• Specify the call destination and the channel to use:

• Channel: <channel>: Channel to use for the call.

• CallerID: "name" <number> Caller ID, please note: it may not work if you do not respect the format: CallerID: "Some Name" <1234>

• MaxRetries: <number> Number of retries before failing (not including the initial attempt, e.g. 0 = total of 1 attempt to make the call). Default is 0.

• RetryTime: <number> Seconds between retries. Default is 300 (5 min).

• WaitTime: <number> Seconds to wait for an answer. Default is 45.

• If the call answers, connect it here:

• Context: <context-name> Context in extensions.conf

• Extension: <ext> Extension definition in extensions.conf

• Priority: <priority> Priority of extension to start with

• Set: Set a variable to be used in the extension logic (example: file1=/tmp/to)

• Application: Application to run (use it instead of specifying context, extension and priority)

• Data: The options to be passed to the application

Use Callfile in dialplan

Create a script file in /var/www/scripts dir.

This script will be executed by dialplan.

Copy a template file and move the duplicated file to /var/spool/callweaver/outgoing/

callfile.sh

------------------------------------------------------
#! /bin/sh
cp /var/www/scripts/test.call /var/www/scripts/temp.call
mv /var/www/scripts/temp.call /var/spool/callweaver/outgoing/
------------------------------------------------------
Give permissions to execute the script.
#chmod +x /var/www/scripts/callfile.sh
Create a template file in /var/www/scripts dir.
Test.call
------------------------------------------------------
Channel: SIP/0276510950/0970720101
Application: Playback
Data: 00000/callfile/message
---------------------------------------------------------

Call a remote script in dialplan.

Part 4: use device comment field for customize CID of outgoing call

...