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

[Michael L. Young (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=205862#comment-205862 ] 

Michael L. Young commented on ASTERISK-21690:
---------------------------------------------

Cool... that would help to confirm what I just saw in the pcap you posted.

{noformat}
<sip:2082 at 10.110.3.20:5060;user=phone?Replaces=918c9a84-d7c986fb-1c79dc42%4010.110.3.138%3Bto-tag%3Das6999a216%3Bfrom-tag%3DBCCC84C8-B8A743FF>
{noformat}

The Replaces header has been URL encoded.  Therefore, we are expecting to find "to-tag=" and "from-tag=".  We can't find these tags because the "=" sign has been encoded to "%3D".
                
> 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
>         Attachments: 8289-DebugLog.txt, 8289FailedTransfer.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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