Thu Apr 16 06:48:10 2015

Asterisk developer's documentation

Hangup Causes for Asterisk

The Asterisk hangup causes are delivered to the dialplan in the ${HANGUPCAUSE} channel variable after a call (after execution of "dial").

In SIP, we have a conversion table to convert between SIP return codes and Q.931 both ways. This is to improve SIP/ISDN compatibility.

These are the current codes, based on the Q.850/Q.931 specification:

For more information:

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