[asterisk-bugs] [JIRA] (ASTERISK-27795) chan_sip: one way / no audio with srtp

[Florian Kaiser (JIRA)]

Florian Kaiser created ASTERISK-27795:
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             Summary: chan_sip: one way / no audio with srtp
                 Key: ASTERISK-27795
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27795
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/SRTP
    Affects Versions: 15.3.0
            Reporter: Florian Kaiser


Same behavior as described in ASTERISK-27604: 
One-way audio between srtp and non-srtp clients.
No audio between two srtp clients.

No problem with just one client (e.g. echotest).

Analysis of tcpdump (available on request) reveals that for the srtp stream Asterisk -> client, the wrong - local - encryption key is being used.

That explains the behaviour: Client can't decode incoming stream -> no audio.

Git bisect narrows it down to commit 065c300 / ASTERISK-27118.



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