[asterisk-bugs] [DAHDI-linux 0015352]: [patch] Click heard 6 seconds after answer on FXS ports.

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15352 
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Reported By:                alecdavis
Assigned To:                dbailey
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Project:                    DAHDI-linux
Issue ID:                   15352
Category:                   wctdm
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     assigned
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Date Submitted:             2009-06-18 04:12 CDT
Last Modified:              2009-07-31 00:29 CDT
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Summary:                    [patch] Click heard 6 seconds after answer on FXS
ports.
Description: 
Continuation of https://issues.asterisk.org/view.php?id=15311 which is
specifically related AsteriskNOW 1.5

This is for SVN trunk.

If a call to a FXS port on a TDM400P is picked up while ringing (not
silent period), after 6 seconds of the pickup a click is heard, and it's
reported that sometimes this causes a hangup.


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Relationships       ID      Summary
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parent of           0015311 [patch] Call to a FXS DAHDI channel wit...
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 (0108444) vmikhelson (reporter) - 2009-07-31 00:29
 https://issues.asterisk.org/view.php?id=15352#c108444 
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Alec,

It is a different issue as you stated in 15311/106521.

I have just retested to make sure.

1. Polarity was reversed on all FXS lines if the "reversepolarity=1" was
commented out, checked by a Telephone Line Tester GTT-200;
2. After reversepolarity=1 switch was re-applied polarity became normal.

Behavior is different in DAHDI 2.2 in the following way. If
"reversepolarity=1" is specified polarity is normal upon startup whereas in
2.1.0.4 it was necessary to trigger it by placing a call. See my note
15311/106525.

Thank you,
Vladimir 

Issue History 
Date Modified    Username       Field                    Change               
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2009-07-31 00:29 vmikhelson     Note Added: 0108444                          
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