PSTN echo issues

If it's a Digium card, don't be afraid to call them. 
They're happy to
answer the phone and help you, and their support is very
good.

On Wed, 2006-05-10 at 14:37 -0500, Jim Freeze wrote:
> Howdy
> 
> I have a sip phone that connects to pots through an
incoming pstn line
> and a tdm card.
> 
> There seems to be some echo on the calls that go
through the pstn.
> I have fiddled with rxgain and txgain in zapata.conf ,
but it is
> difficult
> to see changes in their affect.
> 
> The only assurance I have that I am effecting anything,
is that if I
> turn the gain down to -6.3, then the audio disappears.
> 
> Running ztmonitor, the rx signal looked good, but the
tx channel 
> would peg the meter. However, contrary to this, the
best results
> I got were when I set the txgain to 7 and left the
rxgain at 0.
> 
> Any tips from experts would be greatly appreciated.
> 
> Thanks
> 
> 
> -- 
> Jim Freeze 
> _______________________________________________
> Austin-Asterisk-Users-Group mailing list
> Austin-Asterisk-Users-Groupbybent.com
> http://buzzard.onr.com/mailman/listinfo/austi
n-asterisk-users-group
> AAUG Web Site: http://aaug.bybent.com/
-- 
Chris Tooley
Developer
o 512-646-1507
f 512-305-0704
m 512-659-2498

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Echo problems can be a real pain to solve. If you bought
Digium hardware,
I'd call them up and ask them to help you. You should get
free support
from them.
-Brett


On Wed, May 10, 2006 2:37 pm, Jim Freeze wrote:
> Howdy
>
> I have a sip phone that connects to pots through an
incoming pstn line
> and a tdm card.
>
> There seems to be some echo on the calls that go
through the pstn.
> I have fiddled with rxgain and txgain in zapata.conf ,
but it is difficult
> to see changes in their affect.
>
> The only assurance I have that I am effecting anything,
is that if I
> turn the gain down to -6.3, then the audio disappears.
>
> Running ztmonitor, the rx signal looked good, but the
tx channel
> would peg the meter. However, contrary to this, the
best results
> I got were when I set the txgain to 7 and left the
rxgain at 0.
>
> Any tips from experts would be greatly appreciated.
>
> Thanks
>
>
> --
> Jim Freeze
> _______________________________________________
> Austin-Asterisk-Users-Group mailing list
> Austin-Asterisk-Users-Groupbybent.com
> http://buzzard.onr.com/mailman/listinfo/austi
n-asterisk-users-group
> AAUG Web Site: http://aaug.bybent.com/
>


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Austin-Asterisk-Users-Group mailing list
Austin-Asterisk-Users-Groupbybent.com
http://buzzard.onr.com/mailman/listinfo/austi
n-asterisk-users-group
AAUG Web Site: http://aaug.bybent.com/