[asterisk-bugs] [Asterisk 0015903]: udptl.conf parameter T38FaxUdpEC is not working correctly if set to t38UDPRedundancy

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15903 
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Reported By:                schern
Assigned To:                kpfleming
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Project:                    Asterisk
Issue ID:                   15903
Category:                   Channels/chan_sip/T.38
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.6.1.6 
JIRA:                        
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:             2009-09-15 12:55 CDT
Last Modified:              2009-10-01 11:02 CDT
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Summary:                    udptl.conf parameter T38FaxUdpEC is not working
correctly if set to t38UDPRedundancy
Description: 
If I set the parameter T38FaxUdpEC = t38UDPRedundancy in udptl.conf the SDP
part of the T.38 re-INVITE from Asterisk to the carrier always contains the
wrong EC method:
[...]
a=T38FaxMaxDatagram:140
a=T38FaxUdpEC:t38UDPFEC
[...]

Correct would be a=T38FaxUdpEC:t38UDPRedundancy.

In Asterisk v1.6.0.6 and 1.4.x the EC method is set correctly to the value
of the udptl.conf.
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 (0111727) kpfleming (administrator) - 2009-10-01 11:02
 https://issues.asterisk.org/view.php?id=15903#c111727 
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In Asterisk 1.6.1.6, control over which method of UDPTL redundancy is
offered to a SIP endpoint is actually done from sip.conf, not udptl.conf.
In fact, the udptl.conf setting for redundancy mode no longer has any
useful effect. Please see the sip.conf.sample included with Asterisk
1.6.1.6 to learn how to configure this setting for your peers. Thanks. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-10-01 11:02 kpfleming      Note Added: 0111727                          
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