Asterisk Cookbook: Solutions to Everyday Telephony Problems by Leif Madsen

By Leif Madsen

Asterisk has a wealth of positive aspects that can assist you customise your PBX to fill very particular enterprise wishes. This brief cookbook deals recipes for tackling dialplan basics, making and controlling calls, and tracking channels on your PBX atmosphere. each one recipe incorporates a basic code resolution you could positioned to paintings instantly, besides a close dialogue that gives perception into why and the way the recipe works.

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Extra resources for Asterisk Cookbook: Solutions to Everyday Telephony Problems

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By setting the channel variable for a particular channel, ChanSpy() can then be directed to listen only to channels in a particular spygroup. 7, we need to make sure the SPYGROUP channel variable is set on the channel we want to spy on and whisper to. In order to do this, we need to use the U() option of Dial(), which will execute a subroutine which sets the channel variable on the called channel verses the calling channel. info same => n,Set(SPYGROUP=${ARG1}) same => n,Return() We can make sure the channel variable SPYGROUP was set on the correct channel by using the core show channel CLI command at the Asterisk console.

These are just simple examples of dialing a phone with a ; 20 second timeout. ; exten => 7101,1,Dial(SIP/phone1,20) same => n,Hangup() exten => 7102,1,Dial(SIP/phone2,20) same => n,Hangup() ; ; Dial *30 to request call completion services for the last ; call attempt. info exten => *30,1,CallCompletionRequest() same => n,Hangup() ; ; Dial *31 to cancel a call completion request. 8. It allows you to request that Asterisk call you back after an unanswered or busy call attempt. In this example, we have used the generic agent and monitor policies.

Using the Originate() application, we’ve used a Local channel that plays back an audio file and connected it to the conference bridge using MeetMe() by connecting via a dialplan extension*. When we dial extension 200, the Originate() application creates a Local channel that executes the inject extension in the ConferenceAudio context. Once the Local channel is created, it is connected to the quiet_join extension located in the ConferenceAudio context which then connects to the MeetMe() application.

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