[asterisk-bugs] [Asterisk 0017956]: atxfer broken on 1.6.2.11

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17956 
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Reported By:                ronald_verschaeren
Assigned To:                mnicholson
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Project:                    Asterisk
Issue ID:                   17956
Category:                   Features
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     feedback
Target Version:             1.6.2.15
Asterisk Version:           1.6.2.11 
JIRA:                       SWP-2167 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-09-06 03:14 CDT
Last Modified:              2010-09-29 02:56 CDT
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Summary:                    atxfer broken on 1.6.2.11
Description: 
I'm using SIP phones.

- A calls B
- B transfers A to C by pressing ?2, then C's extension (atxfer =>
https://issues.asterisk.org/view.php?id=2 in
features.conf)
- C picks up, talks to B.
- B hangs up.
- both A and C hear silence

afaict, A is not bridged to C. This issue was not present in 1.6.1

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Relationships       ID      Summary
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related to          0017999 Issues with DTMF triggered attended tra...
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 (0127490) ronald_verschaeren (reporter) - 2010-09-29 02:56
 https://issues.asterisk.org/view.php?id=17956#c127490 
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I've uploaded the output. Sorry for the delay.

Couple of points that may or may not interest you:
- The issue appears to be phone-independent, it happens on all phones I
can test here.
- Sometimes, the transfer works! I would estimate in about 2-3% of cases.
- This happens most often when asterisk has just been restarted.
- There is no output from 'core show locks' when the transfer works.
- When the transfer has failed and both parties hear silence, if one of
then hangs up, the other channel remains open. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-09-29 02:56 ronald_verschaerenNote Added: 0127490                          
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