Had a similar issue with the same model a while back - happened out of the
blue.
Don't ask how we found this out - however we discovered that if the person
at the 7960 end screams into the phone, they can then hear the other end for
a few seconds (having it dialled in to MOH helps when testing this) - so it
seems to be related to silence suppression. This can be resolved by changing
one of the config parameters,
Hope this helps.
JB.
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Jerry Geis
Sent: Friday, 6 July 2007 3:14 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] sometimes half audio on 7960
Hi,
I am getting half channel audio on cisco 7960?
Any idea why? Details below.
Jerry
This same phone has been working for MONTHS using a TDM2400p
with no issues.
Today we got a T1 installed coming into Box A with all incoming calls
going to Box B (the TDM2400P box).
The TDM2400 is no longer in use. All incoming and outgoing calls are
done with the T1 and Box A and Box B
use SIP between them (will change later).
I have 6 polycom phones that work perfectly in this arrangement. I have
1 cisco 7960 that gets half channel audio.
The calling person can hear the called person but that is all.
Where do I start looking for something like this?
Again the 7960 has been fine for 2 years using the TDM2400p.
Doesnt seem to matter if calls are coming into the 7960 or if this
person is calling out. The same half channel exists.
THanks for hte help.
Jerry
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