[asterisk-bugs] [JIRA] (ASTERISK-27673) Attended SIP Transfer via func local_attended_transfer does not call TRANSFER_CONTEXT

[Peter Katzmann (JIRA)]

Peter Katzmann created ASTERISK-27673:
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             Summary: Attended SIP Transfer via func local_attended_transfer does not call TRANSFER_CONTEXT
                 Key: ASTERISK-27673
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27673
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/Transfers
    Affects Versions: 13.17.2, 11.25.3
         Environment: ubuntu lts 14.x, 16.x
            Reporter: Peter Katzmann
            Severity: Minor


During tests of transfer scenarios we figured out that under some circumstances the defined TRANSFER_CONTEXT is not called. We nailed it down to Attended Transfers via SIP REFER inside a single pbx.

Further debugging showed that inside chan_sip.c the handle_request_refer asterisk calls  local_attended_transfer. 
If these function succeeded asterisk returns (13.x series) or jumps to cleanup (11.x series) without calling any ast_async_goto for the TRANSFER_CONTEXT variable.



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