[asterisk-bugs] [Asterisk 0016513]: Transferee can hear silence on attended transfer when tranferer hangs up (MOH stops to play)

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16513 
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Reported By:                litnimax
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16513
Category:                   PBX/General
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.4.28 
JIRA:                       SWP-624 
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:             2009-12-24 14:16 CST
Last Modified:              2010-01-05 09:22 CST
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Summary:                    Transferee  can hear silence on attended transfer
when tranferer hangs up (MOH stops to play)
Description: 
How to reproduce. 
1. "A" calls "B".
2. "B" picks up and talks to "A".
3. "B" makes attended transfer to "C". "A" hears MOH. 
4. "B" does not wait until "C" picks up and "B" hangs up. MOH is stopped
(!) and "A" starts to hear nothing, just silence (!).
5. When atxfernoanswertimeout expires call is returned to "B". "A" can
again hear ringing.
See the log - http://asteriskpbx.ru/pastebin/30

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 (0116048) gknispel_proformatique (reporter) - 2010-01-05 09:22
 https://issues.asterisk.org/view.php?id=16513#c116048 
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We recently had the same problem and wrote a little patch to workaround
it.

When applied, if you reproduce steps:
 1. "A" calls "B".
 2. "B" picks up and talks to "A".
 3. "B" makes attended transfer to "C". "A" hears MOH.
 4. "B" does not wait until "C" picks up and "B" hangs up.
it results in that:
 a. if "C" is still ringing, "A" will still hear MOH until either "C"
answers or hangs up (or the call is dropped, etc...).
 b. if "C" answers, "A" and "C" will be connected;
 c. or if "C" hangup (or the call is dropped, etc...), the transfer
attempt terminates. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-01-05 09:22 gknispel_proformatiqueNote Added: 0116048                      
   
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