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Problem with Comfort Noise and Echo Cisco 1760

Have 2 FXO cards inserted with Cisco 1760. The problem is on the IP Phone side when no one is talking there is dead space. That is with vad turned off and Noise Regeneration enabled or disabled. Also when the client is talking on the IP Phone side there is no echo back while he is talking. Only time there is echo back is when the PSTN side is talking. Soon as the PSTN side stops talking there is dead space until PSTN side starts talking again. Any suggestions Thanks

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Re: Problem with Comfort Noise and Echo Cisco 1760

Check this thread for troubleshooting hints and PDF documentation. If you're using the 4FXO card, there are some special known issues.

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.eeac4ea

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