[asterisk-bugs] [Asterisk 0015779]: T38 passthrough errors in Asterisk 1.6.0.14-rc1

Asterisk Bug Tracker noreply at bugs.digium.com
Wed Aug 26 02:23:42 CDT 2009


A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15779 
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Reported By:                fcois93
Assigned To:                
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Project:                    Asterisk
Issue ID:                   15779
Category:                   General
Reproducibility:            have not tried
Severity:                   block
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.0.14-rc1 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-08-25 10:41 CDT
Last Modified:              2009-08-26 02:23 CDT
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Summary:                    T38 passthrough errors in Asterisk 1.6.0.14-rc1
Description: 
hello,

I am trying to do T38 passthrough
my architecture:
FAX-Asterisk-T38gateway

the fax initiate call in g711 and after, invite again with T38.

asterisk said at inviteT38:
[Aug 25 17:32:30] WARNING[5198]: chan_sip.c:7025 process_sdp: Unsupported
SDP media type in offer: image 8000 udptl t38


please help me how to do.

====================================================================== 

---------------------------------------------------------------------- 
 (0109665) fcois93 (reporter) - 2009-08-26 02:23
 https://issues.asterisk.org/view.php?id=15779#c109665 
---------------------------------------------------------------------- 
Some news:
Fax-asterisk-gatewayt38

Fax->* invite(g711)
...
*->faxringing+200OK
Fax->* invite(T38)
* accept the T38 and reply trying
*->* invite (t38)
* find chan_sip.c:6737 get_ip_and_port_from_sdp: Failed to read an
alternate host or port in SDP. Expect audio problems


The problem is that asterisk generate an invite (t38) for himself with
others parameters in the SDP


Why? 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-08-26 02:23 fcois93        Note Added: 0109665                          
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