[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:                        
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:              2010-02-17 14:33 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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 (0118188) lmadsen (administrator) - 2010-02-17 14:33
 https://issues.asterisk.org/view.php?id=16850#c118188 
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You'll probably also need to provide a full console output of this
happening, with debug level logging enabled (logger.conf).

Also, please provide the SIP trace along with SIP history from the
console.

This will make it easier for a developer to understand what is going on.
Thanks! 

Issue History 
Date Modified    Username       Field                    Change               
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2010-02-17 14:33 lmadsen        Note Added: 0118188                          
2010-02-17 14:33 lmadsen        Status                   new => feedback     
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