[asterisk-bugs] [DAHDI-linux 0015724]: [patch] Echo with dahdi-linux 2.2.0 and wcte12xp w/VPMADT032

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15724 
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Reported By:                isaacgal
Assigned To:                sruffell
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Project:                    DAHDI-linux
Issue ID:                   15724
Category:                   dahdi (the module)
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
JIRA:                        
Reviewboard Link:            
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Date Submitted:             2009-08-15 17:03 CDT
Last Modified:              2009-11-11 15:08 CST
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Summary:                    [patch] Echo with dahdi-linux 2.2.0 and wcte12xp
w/VPMADT032
Description: 
Note: I've changed the name of this issue since the original issue was a
duplicate of 0015498 and this issue has become more about echo, and not
about HDLC aborts. -sruffell

Original description

going back to 2.1.0.4 and the problem is gone. 

this issue was reported by alecdavid in 0015498 and it is NOT fixed and
should not have been merged into 2.2.0.2.

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Relationships       ID      Summary
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related to          0015498 [patch] Console full of PRI got event: ...
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 (0113684) alecdavis (reporter) - 2009-11-11 15:08
 https://issues.asterisk.org/view.php?id=15724#c113684 
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With trunk, it's with every call, and can still get it to do it when
calling the Telecom Voice mail IVR (DTMF keys echo'd back).

Our setup at the TE121 site is relativly simple, but not simplist, a Jtec
ISDN switch is between TE121 and Telecom ISDN connection.
SIP <-> ASTERISK <-> TE121 <-> [E1 - Jtec ISDN Switch - BRA] <-> BRA ISDN
Telecom

The sites with the TE220B are similar.
SIP <-> ASTERISK <-> TE220B <-> [E1 - Jtec ISDN Switch - E1] <-> PRI ISDN
Telecom

For me to test though, its over an IAX trunk between sites.
Needless to say, users at the TE121 site, dialing out to their local area
also have echo, so IAX isn't involved. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-11-11 15:08 alecdavis      Note Added: 0113684                          
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