Application dialplans

Creating and Configuring Dialplan Applications

Dialplan applications are programmable voice applications in PHP and Asterisk Dialplan. MikoPBX comes with several pre-configured applications. With some basic knowledge of Asterisk dialplans, additional applications can be easily created. Like a phone account, applications can have an extension assigned in the settings.

MikoPBX comes with several pre-configured applications. With some basic knowledge of Asterisk dialplan, you can easily create additional applications. Like a phone extension, applications can have an internal number assigned in the settings.

Below you will see a description of the basic applications included in MikoPBX:

List of basic Application dialplans

Application Number	Application Description
000063	The application reads the internal number of the employee used to call the application and voices it to the employee, i.e. the employee is voiced his internal number on the PBX
000064	0000MILLI - Generates a constant sound signal with a frequency of 1000 Hz. Used to check the quality of the connection.
10003246	The Echo application sends the received audio signals back to the user so that the delay duration can be determined. In general, you hear what you say. The application is mainly used for testing.

Creating applications

MikoPBX applications are created from several plans of the Asterisk application suite. There are many examples of ready-to-run applications in the system. To add a new MikoPBX application, click on "Add a New" in the application menu.

"Add a new" button

In just a few steps, you can create your own applications. First, define the Name and Call Number for the application, and optionally fill in the Comment field.

Possible application code types:

• PHP-AGI script - AGI is an embedded method in Asterisk for executing external scripts (similar to CGI for HTTP servers), which can extend Asterisk's functionality using other programming languages, particularly PHP. AGI scripts can control call handling in the dialplan and are invoked from the extensions.conf file.

• Asterisk Dialplan - The configuration of the dialplan is contained in the Asterisk configuration file called extensions.conf. This is one of the most important configuration files where the processing and routing of incoming and outgoing calls are defined. This file governs the behavior of all connections passing through your PBX (Private Branch Exchange).

Parameters of the new dialplan application

Let's clarify: we will refer to MikoPBX applications as "applications" and Asterisk dialplan functions as "functions". For example, Answer(), NoOP(), Set(), and Wait() are functions. These are individual target functions in Asterisk that are then combined in MikoPBX to create more powerful MikoPBX applications.

Describe the logical operations in the text field of the Programme Code. Please note that only one command is allowed per line, for example:

"Programme code" section

The figure shows an example of the simplest application for the number 000063. After dialing the number, you will hear the robot voice your internal number.

MikoPBX will check the commands used. It is possible that incorrectly programmed operations may affect the performance of your telephone system.

Description of Asterisk functions that you can use in your applications:

Наименование команды	Описание
answer	Transfer the call to the answered state.
channel status	Returns the status of the connected channel.
control stream file	Sending a preset audio file to the channel, with the ability to control its playback (pause/rewind/resume playback) using the DTMF digits received from the subscriber, if specified. (Asterisk 1.2)
database del	Deleting a key/value from the database.
database deltree	Deleting the key/value tree from the database.
database get	Get the value from the database.
database put	Adding/changing a value in the database.
exec	Execution of the specified Command. (Commands are functions that you use when describing the set plan in the extensions.conf file).
get data	Get data from the channel.
get option	Behaves similarly to the "STREAM FILE" command, but is used with a specified value for timeout. (Asterisk 1.2)
get variable	Get the value of the channel variable.
hangup	Break the connection (Hangup) on the current channel.
noop	An empty command. Does nothing.
receive char	Accepts one character from the channel if it supports this feature.
receive text	Accepts a text string from a channel if it supports this feature.
record file	Writes to the specified file.
say alpha	Pronounces the specified string of characters. (Asterisk 1.2)
say date	Pronounces the date. (Asterisk 1.2)
say datetime	Pronounces the date and time according to the specified format. (Asterisk 1.2)
say digits	Pronounces the specified string of digits.
say number	Pronounces the specified number.
say phonetic	Pronounces the specified string of characters.
say time	Pronounces the time.
send image	Sends the image to the channel if it supports this feature.
send text	Sends text to the channel if it supports this feature.
set autohangup	Automatic termination of the connection (Autohangup) on the channel at the specified time.
set callerid	Setting the caller id for the current channel.
set context	Setting the context for the current channel.
set extension	Change the extension for the current channel.
set music	Включение/Выключение музыки ожидания (Music on hold), например: «SET MUSIC ON default».
set priority	Enabling/Turning off the standby music (Music on hold), for example: "SET MUSIC ON default".
set variable	Setting the channel variable.
stream file	Sending an audio file to the channel.
tdd mode	Setting the TDD mode for a channel that can support it to enable interaction with TDD.
verbose	Writing a message to the verbose log of the asterisk server.
wait for digit	Waiting for the DTMF button to be pressed