[asterisk-bugs] [Asterisk 0016692]: [patch] Missing fallback to audio fax feature when T.38 re-INVITE failed for 1.4

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16692 
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Reported By:                vrban
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16692
Category:                   Channels/chan_sip/T.38
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           1.4.29 
JIRA:                       SWP-795 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-01-25 07:21 CST
Last Modified:              2010-06-01 09:54 CDT
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Summary:                    [patch] Missing fallback to audio fax feature when
T.38 re-INVITE failed for 1.4
Description: 
When a  T.38 re-INVITE failed with an 488 or 606 answer, we should fallback
to audio fax by send a re-re-INVITE without T.38. The function is
backported from 1.6 asterisk. Some people say this is a feature, other say
that it is a bug that 1.4 does not fallback to audio. Here is the patch.
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Relationships       ID      Summary
----------------------------------------------------------------------
related to          0008677 Asterisk does not reinvite peer for G.7...
related to          0016795 1.4 does not send any SIP messages afte...
related to          0016792 [patch] 606 Not Acceptable is also a va...
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 (0122688) svnbot (reporter) - 2010-06-01 09:54
 https://issues.asterisk.org/view.php?id=16692#c122688 
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Repository: asterisk
Revision: 266579

U   branches/1.4/channels/chan_sip.c

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r266579 | pabelanger | 2010-06-01 09:54:05 -0500 (Tue, 01 Jun 2010) | 18
lines

Missing fallback to audio fax feature when T.38 re-INVITE failed

When a T.38 re-INVITE failed with an 488 or 606 answer, we should
fallback to audio fax by send a re-re-INVITE without T.38. The
function is backported from 1.6 asterisk.

(closes issue https://issues.asterisk.org/view.php?id=16795)
Reported by: vrban

(closes issue https://issues.asterisk.org/view.php?id=16692)
Reported by: vrban
Patches:
      t38_fallback_to_audio_v3.patch uploaded by vrban (license 756)
Tested by: lmadsen, vrban, haggard

https://reviewboard.asterisk.org/r/514/


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http://svn.digium.com/view/asterisk?view=rev&revision=266579 

Issue History 
Date Modified    Username       Field                    Change               
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2010-06-01 09:54 svnbot         Checkin                                      
2010-06-01 09:54 svnbot         Note Added: 0122688                          
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