Voice Echo

[sfaulken]

I have several users who use Cisco IP Phones (7910, 7940, 7960) that report when they answer a call from outside the AVVID system they hear an echo of their own voice. The problem is intermittent and I have had little success in recreating the problem or pinpointing a common situation. We are using two Call Managers (version 3.1), two VG200's and one DSP farm. Any suggestions? Thanks

[cbelcher]

Echo is always caused by the equipment of the person you are calling or from which you received a call. You can never fix the problem all you can do it mask it so your users don’t hear it! Use this document to help track down the problem.

http://www.cisco.com/en/US/partner/tech/tk652/tk698/technologies_tech_note09186a0080149a1f.shtml

If you can’t fix it with this document I can recommend some good third party external noise cancellers.

Craig

[fesmith]

I'm looking for a good noise canceller. What ones have you had experience with and which do you recommend?