[asterisk-bugs] [Zaptel 0013286]: Zaptel doesn't detect 2100hz EC disable tone

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
====================================================================== 
http://bugs.digium.com/view.php?id=13286 
====================================================================== 
Reported By:                viniciusfontes
Assigned To:                kpfleming
====================================================================== 
Project:                    Zaptel
Issue ID:                   13286
Category:                   General
Reproducibility:            random
Severity:                   tweak
Priority:                   normal
Status:                     assigned
Zaptel Version:             1.4.11 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
====================================================================== 
Date Submitted:             2008-08-11 15:06 CDT
Last Modified:              2009-04-21 19:38 CDT
====================================================================== 
Summary:                    Zaptel doesn't detect 2100hz EC disable tone
Description: 
In an installation who has a lot of issues with faxing (mostly
communication errors), I noticed that Zaptel isn't detecting the 2100hz
tone and therefore is not disabling EC for that channel.

I expect a line like that in syslog:



Jul 16 14:23:04 pabx kernel: zaptel Disabled echo canceller because of
tone (rx) on channel 1



But I get it only very rarely. Faxes are sent and received via a telco
provided PRI. The board used is a TE110P. There is also a TE410P on the
same box but it is not used for faxing.
====================================================================== 

---------------------------------------------------------------------- 
 (0103570) kpfleming (administrator) - 2009-04-21 19:38
 http://bugs.digium.com/view.php?id=13286#c103570 
---------------------------------------------------------------------- 
My echocan_work branch (dahdi/linux/echocan_work) now has some significant
improvements in CED detection; if you are willing and able to test it, that
would be much appreciated! 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-04-21 19:38 kpfleming      Note Added: 0103570                          
======================================================================