[asterisk-bugs] [Asterisk 0016850]: Should there be transcoding after attended transfer?

[Asterisk Bug Tracker]

The following issue requires your FEEDBACK. 
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https://issues.asterisk.org/view.php?id=16850 
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Reported By:                corruptor
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16850
Category:                   Codecs/General
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.6.0.23-rc2 
JIRA:                       SWP-926 
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:             2010-02-17 03:08 CST
Last Modified:              2010-03-08 13:14 CST
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Summary:                    Should there be transcoding after attended transfer?
Description: 
For example ,we have 3 sip peers 1105, 1102 and 1107.
1105 supports alaw only, 1102 and 1107 - g729 only.

1105 calls 1102 and talks to him (alaw to g729 transcode).
sip show channels:
10.210.12.104    1102             221acda640e4502  0x100 (g729)     No    
  Tx: ACK
10.210.12.254    1105             39c1bec2-df881e  0x8 (alaw)       No    
  Rx: ACK

Then 1102 presses # to do an asterisk attended feature transfer and dials
1107. Then talks to him using g729.
sip show channels 
192.168.1.130    1107             2381c9117db5b81  0x100 (g729)     No    
  Tx: ACK
10.210.12.104    1102             221acda640e4502  0x100 (g729)     No    
  Tx: ACK 
10.210.12.254    1105             39c1bec2-df881e  0x8 (alaw)       No    
  Rx: ACK

1102 hangs up. 1105 and 1107 are connected. 1107 can hear 1105, but 1105
hears silence.
And we [Feb 17 12:02:21] WARNING[18867]: chan_sip.c:5342 sip_write: Asked
to transmit frame type 64, while native formats is 0x8 (alaw)(8) read/write
= 0x40 (slin)(64)/0x8 (alaw)(8)                             
[Feb 17 12:02:21] WARNING[18867]: chan_sip.c:5342 sip_write: Asked to
transmit frame type 64, while native formats is 0x8 (alaw)(8) read/write =
0x40 (slin)(64)/0x8 (alaw)(8) get warnings in asterisk console.


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 (0119145) lmadsen (administrator) - 2010-03-08 13:14
 https://issues.asterisk.org/view.php?id=16850#c119145 
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Set to feedback while we await information from the reporter. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-03-08 13:14 lmadsen        Note Added: 0119145                          
2010-03-08 13:14 lmadsen        Status                   acknowledged =>
feedback
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