On Feb 10, 2006, at 10:25 PM, Steve Underwood wrote:
Matthew Fredrickson wrote:
On Feb 10, 2006, at 1:21 PM, Gerard Saraber wrote:
Found it, going to go test it right now :) thanks!
So far reports have been positive on the echo, but its a slow day ;)
We're using cisco 7960 phones, they're pricy, but they work great and
sound good, if it wasn't for the echo issue, I would have been able
to
roll the whole setup out already.
Actually that's not quite true, I still have to make the 7914 addon
module work with the 7960 phone, but that's not a show stopper.
Either way, so far big thumbs up for the MG2 echo can, and if any
developers read this, feel free to add a compile flag to make it more
cpu intensive ;) and do more canceling.
Does latest MG2 behave better than KB1 on your analog lines? I heard
in the past that in some cases (primarily with analog lines) that KB1
worked better. Also, have you tried the echotraining=800 (in
zapata.conf) tweak as well?
A lot of the variability is probably due to thr lack of a DC blocker
at the front of the echo canceller. As far as I remember, none of the
cancellers in * has a DC blocker.
Where can one find out more information on writing a DC blocker? I
google'd around a bit, but couldn't find a definitive overview of what
one was, and how to write one. Thanks!
---
Matthew Fredrickson
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