[asterisk-bugs] [Asterisk 0019104]: [patch] Image media line with port set to 0 is considered active

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=19104 
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Reported By:                sdube
Assigned To:                
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Project:                    Asterisk
Issue ID:                   19104
Category:                   Channels/chan_sip/T.38
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.40 
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:             2011-04-12 09:28 CDT
Last Modified:              2011-04-12 10:28 CDT
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Summary:                    [patch] Image media line with port set to 0 is
considered active
Description: 
When parsing SDP containing an image media line with a port set to 0 (to
specify it as inactive), T.38 is considered enable but should not.

ex: m=image 0 udptl t38

This block scenarios where an initial INVITE contains both audio an image
and image is disabled afterward for an audio only call using a Re-INVITE.
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 (0133649) mnicholson (administrator) - 2011-04-12 10:28
 https://issues.asterisk.org/view.php?id=19104#c133649 
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Try the attached patch and see if it fixes your issue. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-04-12 10:28 mnicholson     Note Added: 0133649                          
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