Hey everyone,
I have been trying to figure this out and I am just getting no where
with it. The office is using Polycom IP 601 phones. Everything sounds
great in terms of quality on both heads. However, users of the phone are
having trouble with their headsets and handsets. Some users are hearing
their voices back come back on the phone. If they adjust their volume
lower, then it goes away, but then they can hardly hear the customer.
I have tried using the noise suppression and cancellation features on
the sip.conf for the phone but that hasn't worked either. Has anyone had
this before and have you found a way to adjust the phone to cancel the
echo? Or am I wrong and it isn't the phone but the zapata.conf for
asterisk or the TDM card? Is there a way to boost the volume of the
caller without adjusting the phones? For example the rxgain and txgain
in the zapata.conf file.
Any suggestions would be greatly helpful.
Thanks,
Kevin
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