I have found that the audio is hot from some carriers and low on others.
I have found that this is causing the echocanclers problems. Before I
reduce it down by 3db I will see if some of the problem in in the Supura .
Andrew Kohlsmith wrote:
On May 26, 2005 01:58 pm, Colin Anderson wrote:
I have had good success fiddling with the txgain and rxgain values in
zapata.conf on my PRI. In my setup, cranking the gain down a LOT eliminated
most of the echo, and training the users to turn down the gain on their
handsets did the rest. It's true, with a PRI, that gains are cranked across
the board. Turning the gain down solves a lot of echo problems, with
negligible effect on voice quality.
There should be *NO* reason to adjust tx/rxgain on a PRI or ANY digital
connection! The fact that adjusting it down 10% worked suggests that the
telco switch is boosting the signal for some unknown reason. Use the
technique outlined in this message:
http://lists.digium.com/pipermail/asterisk-users/2004-November/071301.html
(It works VERY well and is very straightforward, thank you Kris, I reference
this all the time!)
Again if you're screwing with gains on PRI you have bigger problems, I think.
-A.
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