[asterisk-bugs] [Asterisk 0016705]: [patch] [regression] T.38 negotiation Broken

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16705 
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Reported By:                mpiazzatnetbug
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16705
Category:                   Channels/chan_sip/T.38
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.4.29 
JIRA:                       SWP-808 
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:             2010-01-26 08:42 CST
Last Modified:              2010-02-03 17:10 CST
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Summary:                    [patch] [regression] T.38 negotiation Broken
Description: 
After upgrading from 1.4.26.3 to 1.4.29 the T.38 negoation seems broken.
Probably this issue is a replication of 0016318 . Unfortunatly on the
1.4.29 it's look like the issue it's not totally fixed. 
I try to send a fax from an ATA to a fan on analog line.
ATA -> Asterisk -> Patton SN4091

When the fax answer the asterisk don't handle properly the call, on the
CLI I can see the message "Start music on hold" link with the ATA sip
channel.

As attachment the log of the console
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Relationships       ID      Summary
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related to          0016318 [patch] New SDP handling code totally b...
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 (0117679) ebroad (manager) - 2010-02-03 17:10
 https://issues.asterisk.org/view.php?id=16705#c117679 
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The attached patch is based on a hunch that I have after looking through
the code. Unfortunately, I do not have time to test it. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-02-03 17:10 ebroad         Note Added: 0117679                          
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