[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:                mnicholson
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Project:                    Asterisk
Issue ID:                   13405
Category:                   Applications/app_fax
Reproducibility:            N/A
Severity:                   feature
Priority:                   normal
Status:                     assigned
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:              2011-05-13 09:57 CDT
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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.

======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
related to          0018889 [patch] T.38 state should be unavailabl...
related to          0019251 [patch] Framehooks ast_indicate_data In...
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 (0134899) boroda (reporter) - 2011-05-13 09:57
 https://issues.asterisk.org/view.php?id=13405#c134899 
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I've tested the following patches with the same scenario.

Panasonic KX-FT938 @ Linksys SPA 9000 == <SIP G.711-voice/T.38-fax> ==
Asterisk 1.x [patched] == <Dynamic DAHDI> == ReceiveFAX @ Asterisk 1.8.2.3

Dialplan at patched Asterisk:

exten => _X.,1,Set(FAXOPT(t38gateway)=yes)
; for 1.8.3.2 same => n,FaxDetect(5)
same => n,Dial(DAHDI/G1/${EXTEN})
same => n,Hangup()

- asterisk-1.8.2_fax.2.patch
Segfaults after "Running Gateway activestate=4 (SIP/test-00000002) and
inactivestate=0 (DAHDI/i7/123-3)"

- asterisk-1.8.3_2_fax.patch
Works only with FaxDetect application. Otherwise refuses T.38: "Called to
deny a T38 reinvite if the core does not respond to our request"

- asterisk-1.8.4_fax.patch
Works fine even without FaxDetect. But there's no switchback to voice.
Neither Linksys nor Asterisk sends re-INVITE to voice codec. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-05-13 09:57 boroda         Note Added: 0134899                          
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