[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:              2011-01-09 01:31 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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 (0130335) dluzin (reporter) - 2011-01-09 01:31
 https://issues.asterisk.org/view.php?id=13405#c130335 
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Made some changes in code, added some checkings for T38_STATE_UNKNOWN to
prevent situation when ast_t38_gateway may start before both of peers has
been checked for T.38 support and some checkings for T38_STATE_NEGOTIATED
to allow bridging when both channels has T.38 support. Also made some work
after CED detection. Now T.38 gatewaying works like charm!
Will do some code cleaning and can post reworked patch here.

@joeloliveira:
Now VIP-157S works with 3.2 firmware, but not stable. It may or may not
send reinvite and also may not reply to reinvite if it does CED detection
at that time - I saw situation when fax attached to it started to produce
CED tone, asterisk sent a reinvite rigth before that and VIP-157S sends
reinvite after CED detection completes and forgets to reply to incoming
reinvite.

@klaus3000:
Are you planning to rewrite T38_STATE_... processing in
ast_bridge_frames?
In my opinion it is quite complicated and hard to trace and should be
fomalized into 'case - of' structure. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-01-09 01:31 dluzin         Note Added: 0130335                          
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