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

[Peter Grace (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=205926#comment-205926 ] 

Peter Grace commented on ASTERISK-21690:
----------------------------------------

Hi Michael!

I've attached another pcap and the level9 debug log for the call shown in the pcap.  In this case the user attempted the transfer once and received "Transfer Failed", then tried a subsequent time and got the same "Transfer Failed" but then she said the call disappeared and it actually transferred to the remote party!

So I'm not exactly sure what's going on, but it seems like the only commonality between the Polycom showing the "transfer failed" message is the occurence of this 481 on the NOTIFY after the REFER.

Let me know if you need any other info!
                
> 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
>            Assignee: Peter Grace
>            Severity: Minor
>         Attachments: 8287-20130426-TransferFailedButSucceeded-debug.txt, 8287-20130426-TransferFailedButSucceeded.pcap, 8289-DebugLog.txt, 8289FailedTransfer.pcap, petebart-blind-combined.pcap
>
>
> 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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