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Set whether an audiohook may be inherited to another channel


By enabling audiohook inheritance on the channel, you are giving permission for an audiohook to be inherited by a descendent channel. Inheritance may be be disabled at any point as well.

Example scenario:

exten => 2000,1,MixMonitor(blah.wav)

exten => 2000,n,Set(AUDIOHOOK_INHERIT(MixMonitor)=yes)

exten => 2000,n,Dial(SIP/2000)

exten => 4000,1,Dial(SIP/4000)

exten => 5000,1,MixMonitor(blah2.wav)

exten => 5000,n,Dial(SIP/5000)

In this basic dialplan scenario, let's consider the following sample calls

Call 1: Caller dials 2000. The person who answers then executes an attended

transfer to 4000.

Result: Since extension 2000 set MixMonitor to be inheritable, after the

transfer to 4000 has completed, the call will continue to be recorded to blah.wav

Call 2: Caller dials 5000. The person who answers then executes an attended

transfer to 4000.

Result: Since extension 5000 did not set MixMonitor to be inheritable, the

recording will stop once the call has been transferred to 4000.

Prior to Asterisk 12, masquerades would occur under all sorts of situations which were hard to predict. In Asterisk 12, masquerades only occur as a result of a small set of operations for which inheriting all audiohooks from the original channel is now safe. So in Asterisk 12.5+, all audiohooks are inherited without needing other controls expressing which audiohooks should be inherited under which conditions.


  • source - The built-in sources in Asterisk are
    • MixMonitor
    • Chanspy
    • Volume
    • Speex
    • pitch_shift
    • Mute
      Note that the names are not case-sensitive

See Also

Import Version

This documentation was imported from Asterisk Version SVN-branch-12-r419021

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