Re: Cisco 7960 ip phones.. [7:32006]

2002-01-16 Thread [EMAIL PROTECTED]

Hi Kelley,
That is pretty interesting, because we have another exeperience,
could you please send me Cisco TAC case number on that issue.
With best regards,
Sergey.



Kelley Allen @groupstudy.com on 15.01.2002
22:39:44

Please respond to Kelley Allen 

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Subject:  Re: Cisco 7960 ip phones... [7:32006]



We have had the same issue with our phone system.  The problem is not your
call manager or your phone system for that matter.  The issue is actually
with the phone system that your calling or is calling you.  Digital cannot
echo by nature, but analog does.  What needs to be done is a noice
cancellation setting placed on the device in which your PRI or POTS line is
terminated.  Currently Cisco does not support this function on the 6509
Voice PRI card, nor any of the voice modules for the routers or AS lines.
I
am currently working with the Voice team as a test bed for this problem and
will report the fix here as soon as possible.




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Cisco 7960 ip phones... [7:32006]

2002-01-15 Thread Paul Beckman

I have been told that the reason we are hearing echo on our phones on
internal phone calls (ip phone to ip phone) is that the ip phones processor
is getting overloaded.  That the echo is really coming from the phone
itself.  I have limited knowledge on this subject so any help or suggestions
on how to stop this echo echo echo echo..:-) is greatly appreciated.

Paul




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Re: Cisco 7960 ip phones... [7:32006]

2002-01-15 Thread Steven A. Ridder

Echo on a digital phone (analog for that matter as well) is usually
intentionally created, but it shouldn't be noticeable.  It's called comfort
noise, so that you can hear yourself talking in the earpiece.  Tests have
shown that people who can't hear themselves in the earpiece think it's
broken.

I'd say this probably isn't your problem.  My first guess is the gain on the
analog trunk lines are too high.

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Re: Cisco 7960 ip phones... [7:32006]

2002-01-15 Thread Kelley Allen

We have had the same issue with our phone system.  The problem is not your
call manager or your phone system for that matter.  The issue is actually
with the phone system that your calling or is calling you.  Digital cannot
echo by nature, but analog does.  What needs to be done is a noice
cancellation setting placed on the device in which your PRI or POTS line is
terminated.  Currently Cisco does not support this function on the 6509
Voice PRI card, nor any of the voice modules for the routers or AS lines.  I
am currently working with the Voice team as a test bed for this problem and
will report the fix here as soon as possible.


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