[asterisk-bugs] [JIRA] (ASTERISK-21690) Asterisk sends SIP 481 after REFER

[Peter Grace (JIRA)]

Peter Grace created ASTERISK-21690:
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             Summary: Asterisk sends SIP 481 after REFER
                 Key: ASTERISK-21690
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21690
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/Transfers
    Affects Versions: 1.8.15.1
         Environment: Server is Dell PowerEdge R610 running CentOS 6.4

Phones are Polycom VVX600's with the following software versions:
Platform: Model=VVX 600, Assembly=3111-44600-001 Rev=A Region=0
Platform: Board=3111-44600-001 3 0
Platform: MAC=0004f2aef0ff
Platform: BootBlock=3.0.4.0061 (44600-001) 13-Sep-12 09:09
Platform: BootL1=1.0.0.0041 (44600-001) 13-Sep-12 10:01
Application, main: Label=Updater, Version=Peridot 5.1.2.0651 07-Nov-12 21:44
Application, main: P/N=3150-11069-512

            Reporter: Peter Grace
            Severity: Minor


Frequently when our users are attempting to transfer a call, their transfer will fail.  One of the instances of the failure is shown in the attached pcap.  I am confused as to how the 481 is being produced since the code comment (and ticket #17521 seems to reiterate) that this only occurs if the call legs are not found, however both Call-ID's described in the REFER exist.  I don't see any debug information in the debug log that hints at why I'm getting a 481.

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