[asterisk-bugs] [Asterisk 0016750]: Audio loop reports T38 switchover but t38state != T38_STATE_NEGOTIATED

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16750 
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Reported By:                iskatel
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16750
Category:                   Applications/app_fax
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.2.1 
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:             2010-02-02 01:32 CST
Last Modified:              2010-02-02 04:29 CST
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Summary:                    Audio loop reports T38 switchover but t38state !=
T38_STATE_NEGOTIATED
Description: 
SendFax not working with t38

Path of call
Asterisk(1.1.1.1) -> Cisco AS5300(2.2.2.2) -> PSTN

app_fax.c was applied from
http://svnview.digium.com/svn/asterisk/branches/1.6.2?view=revision&revision=225871

After re-INVITE has been received from Cisco, asterisk sends 200 OK, then
ERROR appears and asterisk breaks the call. ReceiveFax works.    

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 (0117510) iskatel (reporter) - 2010-02-02 04:29
 https://issues.asterisk.org/view.php?id=16750#c117510 
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hello, vrban

Same problem... in one of my attempts i added one more Wait() application
before SendFax and behavior of session was such:
1) receive re-INVITE with t38
2) asterisk send 488 Not acceptable
3) receive re-INVITE with alaw codec
4) asterisk send 200 OK
5) fax transmitted successfully through alaw   
no errors detected.
As i comment this Wait(), 200 OK was sent to Cisco with t38 but ERROR
appears 

Issue History 
Date Modified    Username       Field                    Change               
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2010-02-02 04:29 iskatel        Note Added: 0117510                          
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