[asterisk-bugs] [Asterisk 0015770]: faxing with T.38 fails

Asterisk Bug Tracker noreply at bugs.digium.com
Mon Aug 24 15:20:30 CDT 2009


A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15770 
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Reported By:                Had
Assigned To:                kpfleming
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Project:                    Asterisk
Issue ID:                   15770
Category:                   Channels/chan_sip/T.38
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.4.26.1 
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:             2009-08-24 12:10 CDT
Last Modified:              2009-08-24 15:20 CDT
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Summary:                    faxing with T.38 fails
Description: 
I have asterisk 1.4.26.1 setup with T.38 passthrough. I have linksys 2102
ATA and my provider use Cisco gateway with T.38 support enabled. Everytime
I send fax this fail with no apparent reason. 
In sip debug logs it looks that T.38 negotiation was successfull, later I
receive SIP BYE packet from provider and the call si hangup but no fax is
sent.
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---------------------------------------------------------------------- 
 (0109541) Had (reporter) - 2009-08-24 15:20
 https://issues.asterisk.org/view.php?id=15770#c109541 
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I've also done wireshark trace. After T.38 negiotiation and switch over you
can see UDPTL packets. But there are only UDPTL packets from ATA to
asterisk. I can't see any packets from asterisk to provider... 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-08-24 15:20 Had            Note Added: 0109541                          
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