[asterisk-bugs] [JIRA] (ASTERISK-25307) Hangup on channel using FastAGI does not hang up child channels

[David Cunningham (JIRA)]

David Cunningham created ASTERISK-25307:
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             Summary: Hangup on channel using FastAGI does not hang up child channels
                 Key: ASTERISK-25307
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25307
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Core/General
    Affects Versions: 11.4.0
         Environment: CentOS 6.6, 64 bit
            Reporter: David Cunningham
         Attachments: hangup1.txt.gz

We have the following scenario:

1. Call comes in to [from-internal] context in Asterisk, FastAGI is called.
2. While AGI is processing call the caller hangs up. In Asterisk trace we see the CANCEL and a HANGUP received on the channel.
3. AGI implements a hunt group by doing Dial() on multiple Local channels, one for each destination.
4. Asterisk calls FastAGI for each hunt group destination.
5. AGI for each destination does a Dial() to a SIP destination to call telephone.
6. Telephones all ring.
7. When one telephone answers it's call immediately drops, and the other telephones stop ringing.

Our question is why the Dial() at step 3, or even at step 5, does not immediately exit (presumably with a DIALSTATUS of CANCEL).

We do try to detect the hangup within the AGI and exit before doing the Dial(), but however close we get it there's always a chance of a CANCEL being received between our check and the Dial(). But why does the Dial() run instead of immediately exiting?

Thank you.




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