[asterisk-bugs] [JIRA] (ASTERISK-27676) Attended Transfer Music On Hold

[Martin Nyström (JIRA)]

Martin Nyström created ASTERISK-27676:
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             Summary: Attended Transfer Music On Hold 
                 Key: ASTERISK-27676
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27676
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Bridges/bridge_simple
    Affects Versions: 13.16.0
         Environment: Linux DECEC 3.10.0-693.2.2.el7.x86_64 #1 SMP Tue Sep 12 22:26:13 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
CentOS Linux release 7.4.1708 (Core)
            Reporter: Martin Nyström
            Severity: Critical
         Attachments: transfer_moh.log

When performing an attended transfer and the transferee target is put into the bridge, music on hold starts playing.

Transfer Scenario

A calls B
B answers A
B holds A
B calls C
C answers B
B transfer A to C
MusicOnHold starts for C and A is still on hold


Unable to replicate, completely random occurrence.

Looking at the logs you may notice the following
[2018-02-15 10:12:05] VERBOSE[3169][C-00013ed2] bridge_channel.c: Channel SIP/margareta.brun-00022a38 swapped with SIP/fredrik.bergqvist-00022a2c into 'simple_bridge' basic-bridge <4379d469-5d98-4f37-8483-8ccb8ce35c0e>
[2018-02-15 10:12:05] VERBOSE[8624][C-00013ed9] bridge_channel.c: Channel SIP/fredrik.bergqvist-00022a37 left 'simple_bridge' basic-bridge <11056989-9a07-44f9-82c5-c7a5944e24f0>
[2018-02-15 10:12:05] VERBOSE[8627][C-00013ed9] res_musiconhold.c: Started music on hold, class 'default', on channel 'SIP/margareta.brun-00022a38'

A: foobar_sip_trunk-00022a25
B: fredrik.bergqvist-00022a37
C: margareta.brun-00022a38





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