[asterisk-bugs] [Asterisk 0014611]: [patch] SIP Attended Transfer fails

[Asterisk Bug Tracker]

The following issue has been UPDATED. 
====================================================================== 
http://bugs.digium.com/view.php?id=14611 
====================================================================== 
Reported By:                klaus3000
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   14611
Category:                   Channels/chan_sip/Interoperability
Reproducibility:            have not tried
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.23 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2009-03-05 11:10 CST
Last Modified:              2009-03-06 07:04 CST
====================================================================== 
Summary:                    [patch] SIP Attended Transfer fails
Description: 
Hi!
The attended trasfer fails in the following scenario:
PBX: Aterisk 1.4.23
Extensions: 1, 2 and 3

Extension 2 call extension 1. 
Extension 1 puts extension 2 on hold.
Extension 1 calls extension 3.
Extension 1 put extensions 3 on hold.
Extension 1 refers extension 3 to extension 2  

--> Asterisk sends NOTIFY with message/sipfrag:
  SIP/2.0 481 Call leg/transaction does not exist

and the transfer fails.

The failure happens only if the REFER is sent to extension 3. If
extensions 1 refers extension 2 to extension 3, then everything works
fine.

I have tested with recent SNOM and eyebeam clients - same result, transfer
does not work. 




====================================================================== 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-03-06 07:04 klaus3000      Summary                  SIP Attended Transfer
fails => [patch] SIP Attended Transfer fails
======================================================================