Stephen Bosch wrote:
Lee Jenkins wrote:
Hi all,
I just purchased a Polycom 301 for my home office and I believe I have
it setup correctly as I can dial out, receive calls in, etc. However,
I'm having the following issue:
When calling a local number over a Zap line, I hear a lot of feed back
on the line. I had a Grandstream configured with the same information
before I got the 301 and never had that kind of feedback noise.
Feedback? As in high-pitched squealing?
I can't imagine any circumstance under which a SIP phone would even
allow feedback.
Maybe you mean echo?
You might also be talking about sidetone, which is the portion of your
own voice that the phone pipes back to you so that you can adjust your
voice accordingly.
Sidetone can be set in the phone configuration; before you do that,
though, I need to know what you mean by feedback.
Sorry, should have been more detailed. It's a sort of background
humming noise, almost like that if you placed the phone next to a high
output electric device. Didn't hear it with Grandstream phone so I
thought it may be something I can change in Polycom. Of course, it
could also be that polycom is better phone, but more apt to pick up
background noise that
It's only on zap calls. I'm still playing with rxgain and txgain in
hopes of resolving this. Basically, the humming noise increase with volume.
--
Warm Regards,
Lee
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