[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:                
====================================================================== 
Project:                    Zaptel
Issue ID:                   13286
Category:                   General
Reproducibility:            random
Severity:                   tweak
Priority:                   normal
Status:                     new
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:              2008-08-11 15:10 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.
====================================================================== 

---------------------------------------------------------------------- 
 (0091321) viniciusfontes (reporter) - 2008-08-11 15:10
 http://bugs.digium.com/view.php?id=13286#c91321 
---------------------------------------------------------------------- 
Added the call recording for a failed fax attempt. It's a snap because
Mantis didn't allowed me to upload the whole file. Notice how the 2100hz
tone is right at the beginning.

The file was recorded using MixMonitor(). 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2008-08-11 15:10 viniciusfontes Note Added: 0091321                          
======================================================================