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Smart Dialplan explains how to use Custom Applications in Wildix Dialplan to interact with external software and databases. Updated: March April 2019 Permalink: https://confluence.wildix.com/x/swBuAQ |
Table of Contents |
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AGI in “Custom Application”
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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)
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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)
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expr1 >= expr2 → greater than or equal
Example:
In this example:
set(FOO=1) - we introduce FOO variable with the value 1.
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condition: $[${FOO} = 1]
label1: users,101,1
label2: users,102,1
Example 1: Check if a device is INUSE before sending a call
GotoIf($[ ${DEVICE_STATE(SIP/100)} == NOT_INUSE ]?context,101,1)
The function DEVICE_STATE(SIP/100) returns the state of the device, results can be:
UNKNOWN | NOT_INUSE | INUSE | BUSY | INVALID |UNAVAILABLE | RINGING | RINGINUSE | ONHOLD
Example 2: Check if there are available users in a call group before sending a call Anchor QUEUEMEMBER QUEUEMEMBER
QUEUEMEMBER | |
QUEUEMEMBER |
GotoIf($[ ${QUEUE_MEMBER(2,ready)} == 0 ]?context,101,1)
The function QUEUE_MEMBER(2,ready) counts the number of ready members of a call group
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Note | ||
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With the help of QUEUE_MEMBER function it is possible to configure CG strategy to execute another Dialplan procedure. The function counts the number of free members of a Call group. When there are no available CG members, an incoming call is routed according to another Dialplan procedure.
where "free" - returns the number of not paused / busy members for a specified queue that can answer calls or are currently paused for the duration of wrap up time after a previous call (free CG members). Note: Wrap up time and ringing state are not considered when using the function. For example: All Call group members are put on pause for the duration period of wrap up time -> the incoming call stays in a queue until wrap up time doesn't expire
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Example 3: Check if the CALLERID(number) matches a regular expression
GotoIf($[${REGEX("^0[6-7][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$" ${CALLERID(number)})}]?noanswer,01,1)
The function REGEX("<regular expression>" <data>)returns true if the regular expression matches the data.
In the example above we check if the caller is a French mobile phone:
Start by 0 then a 6 or 7 then followed by 8 digits => ^0[6-7][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$
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In case of using MySQL or MSSQL DB, apply one of these custom applications:
MySQL:
Set(CallCount=${SHELL(value=`echo "select count(*) from <TABLE> where c_from = '${CALLERID(num)}' and start = answer and start > date_add(LOCALTIME(),INTERVAL - 5 MINUTE);" | mysql -s --raw -h <DB_HOST> -P 3306 <DATABASE> -u <USER> -p <PASSWORD>` && echo $value)})
MSSQL:
Set(CallCount=${SHELL(value=`echo -e "select count(*) from <TABLE> where c_from = '${CALLERID(num)}' and answer = '1900-01-01 00:00:00.000' and start > dateadd(MI,-5,GETDATE());\nGO\nEXIT\n" | tsql -S <DB_HOST> -p 1433 -U <USER> -P <PASSWORD> -D <DATABASE> | sed '6!d'` && echo $value)})
where:
<DATABASE> - database name
<TABLE> - table name
<DB_HOST> - hostname
<USER> - user
<PASSWORD> - password
Warning |
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Important: Time zone of the PBX and the DB server should match! |
Example 5. Check if a user/ users are registered
- Jump to if -> ${REGUSERS(152)}=0 - if user 152 has a registered device (excluding push), the execution result will be "1", otherwise "0"
- Jump to if -> ${REGUSERS(200,201,202)}=0 - if at least one of the users has at least one registered device (excluding push), the execution result will be "1", otherwise "0"
Request to remote server: CURL
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Set(foo=${CURL(http://192.168.1.1/echo.php)})
Dial(SIP/${foo})
Add parameters in CURL url
In the following example the PHP script returns “102” if “callernum” parameter is 0612345678, else the script returns “101”.
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SayDigits(digits)
Says the digits, one by one, digits can be a variable.
SayNumber(number, gender)
Says number
gender is "f" for female voice; "m" - for male ;"c" - for neutral
Example:
Read(FOO,00000/smartdialplan/numcommande,3,,,10)
SayNumber(${FOO},f)
Dial(SIP/${FOO})
Implementation of Smart Dialplan: limited access to the phone based on the amount of credits purchased
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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
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Then you can use “remote script” in dialplan, example: Remote script
Microsoft SQL Integration
Create /rw2/var/www/scripts/sqllookup.php
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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
Code Block |
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------------------------------------------------------ #! /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.
Use device comment field for customize CID of outgoing call
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This scenario can be carried out using Custom Application Dial:
Dial(SIP/pri1_0_0/${CalledID},30,A(00000/Messages/Recording) where pri1_0_0 is the channel used (PRI in this case), 00000 is the folder that contains the audio messages to be played back.
To remove digits from the called number, you can use function:
Dial(SIP/0123456789/${EXTEN:3},30,A(00000/Message/Recording) - in this example SIP trunk is used and ${EXTEN:3} removes 3 first digits from the called number.
What else can you do with Custom Dialplan Apps?
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