[asterisk-bugs] [JIRA] (ASTERISK-30499) inband_progress not honored with ivr/direct accept

[Jørgen H (JIRA)]

Jørgen H created ASTERISK-30499:
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             Summary: inband_progress not honored with ivr/direct accept
                 Key: ASTERISK-30499
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-30499
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_pjsip
    Affects Versions: 20.2.0
         Environment: Linux x64
            Reporter: Jørgen H


According to 20.2 documentation, setting inband_progress=no on the other partys endpoint should prevent Asterisk from sending "183 Session Progress" to it.
It is however sent, and at least if Asterisk picks up the call directly using IVR/audio file playback

Editing line 1678 in channels/chan_pjsip.c
changing case AST_CONTROL_PROGRESS

by adding 

if (channel->session->endpoint->inband_progress && ast_channel_state(ast) != AST_STATE_UP)
  response_code = 183;

solves the problem, but I'm not sure if this breaks something else.


The reason for us not sending 183 is that there is a new bug in the SIP implementation of a commercial provider causing race condition and hangup triggered by 183.




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