IP Phone <-> Asterisk <-> PSTN.
This would be the Echo Canceler on the Asterisk/Zap <-> PSTN interface.
Bill Gibbs wrote:
So would this be the remote end echo can freaking out or the Polycom on
the caller side?
Bill
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eric
"ManxPower" Wieling
Sent: Wednesday, July 26, 2006 9:02 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] One way "screech" or tone
Bill Gibbs wrote:
Randomly, and this is very hard to debug because it happens so quickly
on outbound calls I get a one way screech, it's a steady tone that's
very loud. The remote end cannot hear it. You can hear the person
talking through the tone. I can't describe it but it's bad enough you
have to hang up and call back, and everything then is of course fine
since it's so random I have not been able to reproduce it on demand.
jbot: Echo Canceler Freak Out, this happens when the rxgain is too high
and the echo canceler freaks out. Some users describe it as
"screeching", "feedback", "static", or other useless terms. If users
report "static" on a system where there cannot be static (all digital,
PRI, SIP, etc), you might be experiencing ECFO.
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