[asterisk-bugs] [JIRA] (ASTERISK-21121) Session refresh reinvites an in progress T.38 dialog back to G.711

[Rusty Newton (JIRA)]

Rusty Newton created ASTERISK-21121:
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             Summary: Session refresh reinvites an in progress T.38 dialog back to G.711
                 Key: ASTERISK-21121
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21121
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/T.38
    Affects Versions: 11.2.0
            Reporter: Trevor Peirce
            Assignee: Matt Jordan
            Severity: Minor


A call is initiated and successfully reinvited to T.38.  Both ends are happily communicating.  Once the session timer runs out, Asterisk sends an invite but this invite changes the audio stream back to G.711.  It only does this through one channel, so we end up with the caller sending T.38 and the callee sending G.711.  Things spiral downhill from there.

End result is faxes that take longer than the session timer are not able to complete.

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