[asterisk-bugs] [DAHDI-linux 0013562]: [patch] It's necessary to have low frequency filter for tx signal of DAHDI.

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13562 
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Reported By:                biohumanoid
Assigned To:                
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Project:                    DAHDI-linux
Issue ID:                   13562
Category:                   dahdi (the module)
Reproducibility:            have not tried
Severity:                   feature
Priority:                   normal
Status:                     new
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Date Submitted:             2008-09-26 04:27 CDT
Last Modified:              2008-09-26 12:52 CDT
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Summary:                    [patch] It's necessary to have low frequency filter
for tx signal of DAHDI.
Description: 
It's necessary to have low frequency filter for tx signal of DAHDI. 
Otherwise, low-frequency signal from IP can reach a leased line, and
return back with nonlinear distortions. This will break an echo canceller.

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 (0092893) tzafrir (manager) - 2008-09-26 12:52
 http://bugs.digium.com/view.php?id=13562#c92893 
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Can you suggest an implementation for the extra echo canceller method you
suggest here (the one to filter the transmit path of the zaptel channel). 

Issue History 
Date Modified    Username       Field                    Change               
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2008-09-26 12:52 tzafrir        Note Added: 0092893                          
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