[asterisk-bugs] [Asterisk 0016540]: Asterisk says "No compatible codecs, not accepting this offer!" on T.38 offer

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16540 
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Reported By:                schogge
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16540
Category:                   Channels/chan_sip/T.38
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.4.28 
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:             2010-01-04 10:39 CST
Last Modified:              2010-01-04 11:51 CST
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Summary:                    Asterisk says "No compatible codecs, not accepting
this offer!" on T.38 offer
Description: 
Hi community,

first of all: this is the first bug report in my life.

Since I updated asterisk from 1.4.25 to 1.4.28 I get the the following
message when I try to send or receive a fax with T.38 through asterisk:

"NOTICE[11689]: chan_sip.c:5621 process_sdp: No compatible codecs, not
accepting this offer!"

This is my setup for receiving faxes:
Provider with T.38 support ---SIP---> Asterisk with T.38 pass through
---SIP---> Callweaver with T.38 support

This is my setup for sending faxes:
Linksys SPA 2102 with T.38 support ---SIP---> Asterisk with T.38 pass
through ---SIP---> Provider with T.38 support


With asterisk version 1.4.25 I never saw this message.

Seems like this issue already existed in the past. See
https://issues.asterisk.org/view.php?id=12414

Please let me know if there is any further information needed.

Rgs,
schogge
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 (0115949) schogge (reporter) - 2010-01-04 11:51
 https://issues.asterisk.org/view.php?id=16540#c115949 
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Ok.

If have uploaded the sip debug. Hope that helps.

My setup for receiving faxes what not complete. Here is the correct
overview:
Provider with T.38 support ---SIP (TCP)---> OpenSIPS ---SIP (UDP)--->
Asterisk with T.38 pass through ---SIP (UDP)---> Callweaver with T.38
support

OpenSIP Server is sitting between provider and Asterisk to translate TCP
to UPD. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-01-04 11:51 schogge        Note Added: 0115949                          
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