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

[Asterisk Bug Tracker]

The following issue has been set as RELATED TO issue 0017724. 
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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:                    DAHDI-linux
Issue ID:                   17318
Category:                   NewFeature
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     closed
JIRA:                        
Reviewboard Link:           https://reviewboard.asterisk.org/r/797/ 
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             2010-05-11 06:12 CDT
Last Modified:              2010-07-28 16:32 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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Issue History 
Date Modified    Username       Field                    Change               
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2010-07-28 16:32 sruffell       Relationship added       related to 0017724  
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