[asterisk-bugs] [Asterisk 0012713]: SIP Protocol Violation when REFER rejected in sip_transfer (Cisco CCM, post answer), and Transfer application misclaims success.

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=12713 
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Reported By:                davidw
Assigned To:                file
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Project:                    Asterisk
Issue ID:                   12713
Category:                   Channels/chan_sip/Transfers
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           1.4.20 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2008-05-23 12:59 CDT
Last Modified:              2009-04-03 05:38 CDT
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Summary:                    SIP Protocol Violation when REFER rejected in
sip_transfer (Cisco CCM, post answer), and Transfer application misclaims
success.
Description: 
A call from Cisco CCM was answered and then transferred back to a different
extension on the Cisco.

Asterisk first reported a successful TRANSFERSTATUS, then tried to use a
REFER method.  This was rejected as unsupported.  Asterisk responded with
BYE, which the Cisco accepted.  However it continued to try to send REFERs,
which the Cisco, of course, rejected, because the session reference had
been deleted by the BYE!
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Relationships       ID      Summary
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related to          0010052 NOTIFY race condition when state change...
related to          0011848 Incorrect dialog matching and requests ...
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 (0102657) davidw (reporter) - 2009-04-03 05:38
 http://bugs.digium.com/view.php?id=12713#c102657 
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Unfortunately, we've moved on to a later Cisco version which can handle
late transfers.  Also, SIP limitations look like meaning that transfers
would break mandatory requirements for us, even though we had hoped that
they might provide a solution for some optional ones.  As such, I'm not
sure that we are in a position to test this any longer. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-04-03 05:38 davidw         Note Added: 0102657                          
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