[asterisk-bugs] [Asterisk 0013405]: [patch] T38 gateway

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=13405 
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Reported By:                dafe_von_cetin
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13405
Category:                   Applications/app_fax
Reproducibility:            N/A
Severity:                   feature
Priority:                   normal
Status:                     confirmed
Asterisk Version:           SVN 
JIRA:                       SWP-115 
Regression:                 No 
Reviewboard Link:           https://reviewboard.asterisk.org/r/459/ 
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 140548 
Request Review:              
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Date Submitted:             2008-08-30 16:44 CDT
Last Modified:              2011-01-07 07:28 CST
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Summary:                    [patch] T38 gateway
Description: 
Hi all,

I'm sending you patch containing new application app_faxgateway.c
("FaxGateway") which is able to mediate T30 to T38 and vice versa.
Feature is using spands library (I used spandsp-0.0.4pre18 and
spandsp-0.0.5pre4).

Best regards
Daniel.

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 (0130299) joeloliveira (reporter) - 2011-01-07 07:28
 https://issues.asterisk.org/view.php?id=13405#c130299 
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@klaus3000: Sorry that I did forgot to explain what was the Cisco (it was a
SIP trunk with the outside of my network) but nevermind, to keep things
simple I decided to go with a more simple scenario like:

Fax1 <-> ATA1 <-SIP/T38-> Asterisk <-SIP/T38-> ATA2 <-> Fax2

Both ATAs are Planet Technology's VIP-157s both capable of T.38, Asterisk
is at 1.6.2.13 version and the debug is presented on
http://pastebin.com/abxhReuE, with 'core set debug channel all', 'udptl set
debug on' and 'rtp set debug on' executed.

In the debug I tryed to send a fax from Fax1 to Fax2, and it comes to my
understanding that the callee can't negotiate T.38. I tryed the other way
around, i.e. from Fax2 to Fax2, and the same thing happens: the calle can't
negotiate T.38, so, as I understand it, it's not a device problem, it's
Asterisk's. 

A little bit more info about the debug:
asterisk-ip: it's the Asterisk's machine IP
nat-ip: it's the nat IP that both ATAs are connected
6000: is the port for the ATA1 - peer 96 (caller)
6001: is the port for the ATA2 - peer 97 (callee)

Does anyone has any clue around this issue? Thanks for reading this :) 

Issue History 
Date Modified    Username       Field                    Change               
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2011-01-07 07:28 joeloliveira   Note Added: 0130299                          
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