I have an issue with one of our users who is describing calls across the
PSTN as having a echo, he says he can also hear himself and it sounds to
him as if he's talking down a tunnel. Has anyone come across these
complaints before? I was wondering if there was any commands that can be
added to the config to eliminate these.

 

 

 

 

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In Voice Port configuration or from the Gateway configuration in CM you
can enter echo-cancel coverage "number".

 

IE.

 

voice-port 3/0:23

echo-cancel coverage 128

!

voice-port 3/1:23

echo-cancel coverage 128

!

voice-port 3/2:23

echo-cancel coverage 128

!

voice-port 3/3:23

echo-cancel coverage 64

!

voice-port 3/4:23

echo-cancel coverage 64

!

voice-port 3/5:23

echo-cancel coverage 64

 

________________________________

From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Nick Kassel
Sent: Tuesday, July 26, 2005 7:28 AM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] Echo on PSTN calls

 

I have an issue with one of our users who is describing calls across the
PSTN as having a echo, he says he can also hear himself and it sounds to
him as if he's talking down a tunnel. Has anyone come across these
complaints before? I was wondering if there was any commands that can be
added to the config to eliminate these.

 

 

 

 

 


 ****************************************
********************************
***********************

The information contained in this e-mail is strictly confidential, some
or all
of which may be legally privileged. It is for the intended recipient
only.
Access to this e-mail by any other person is prohibited. If you are not
the
intended recipient, any use, disclosure, copying, printing, distribution
of,
replying to or any action taken or omitted to be taken in reliance on
this
e-mail, is prohibited and may be unlawful. Please contact the sender
immediately
should this e-mail have been incorrectly addressed or transmitted.

You accept that any instructions are deemed to have been given at the
time the
recipient(s) accesses them and that delivery receipt does not constitute
acknowledgement or receipt by the intended recipient(s). You accept that
there
may be a delay in processing the instructions received from e-mails
after
Charles Stanley has received them. You are advised that urgent, time
sensitive
and confidential communications should not be sent by e-mail. 

You acknowledge that e-mails are not secure and you accept the risk of
malfunction, viruses, unauthorised interference, mis-delivery or delay.
 ****************************************
********************************
************************


Charles Stanley & Co. Ltd
Registered Office: 25 Luke Street London EC2A 4AR

Tel: 0207 739 8200 Fax: 0207 739 7798
Registered in England No. 1903304

Charles Stanley Sutherlands and Tozer Wingate are divisions of Charles
Stanley & Co. Ltd

Authorised and Regulated by the Financial Services Authority, Member of
the
London Stock Exchange, International Securities Markets Association, and
The London International Financial Futures &
Options Exchange.

This footnote also confirms that this email message has been swept by
McAfee
VirusScan and SurfControl Email Filter software.

 

[ Post a follow-up to this message ]