[asterisk-bugs] [Asterisk 0017318]: [patch] FXS Polarity Reversal on Hangup or Answer

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17318 
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Reported By:                armeniki
Assigned To:                alecdavis
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Project:                    Asterisk
Issue ID:                   17318
Category:                   NewFeature
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           I did not set the version :( 
JIRA:                        
Regression:                 No 
Reviewboard Link:           https://reviewboard.asterisk.org/r/797/ 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-05-11 06:12 CDT
Last Modified:              2010-08-21 02:38 CDT
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Summary:                    [patch] FXS Polarity Reversal on Hangup or Answer
Description: 
FXS lines normally connect to a telephone.  However, when FXS lines are
routed to an external PBX or Key System to act as "external" or "CO" lines,
it is extremely difficult, if not impossible for the external PBX to know
when the call has been disconnected without receiving a polarity reversal
on the line.

DAHDI/Asterisk should have a feature to allow a setting someplace, perhaps
in chan_dahdi.conf, to allow a FXS channel to provide a polarity reversal
on channel hangup.
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Relationships       ID      Summary
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related to          0017724 [patch] Race condition in handling writ...
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 (0126210) armeniki (reporter) - 2010-08-21 02:38
 https://issues.asterisk.org/view.php?id=17318#c126210 
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Hi Alec,

I did the patch but got one error at the end.. not sure if this will
change things:

patching file channels/chan_dahdi.c
Hunk https://issues.asterisk.org/view.php?id=1 succeeded at 2753 (offset -5
lines).
Hunk https://issues.asterisk.org/view.php?id=2 succeeded at 2766 (offset -5
lines).
Hunk https://issues.asterisk.org/view.php?id=3 succeeded at 2779 (offset -5
lines).
patch: **** Can't rename file channels/chan_dahdi.c to
channels/chan_dahdi.c.orig : Permission denied

Will recompile and post "full" soon... 

Issue History 
Date Modified    Username       Field                    Change               
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2010-08-21 02:38 armeniki       Note Added: 0126210                          
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