Are you by any chance running a VPN from routers to PSTN? I've noticed this causes distortion some times.
Jeff From: ccie_voice-boun...@onlinestudylist.com [mailto:ccie_voice-boun...@onlinestudylist.com] On Behalf Of Jason Granat Sent: Thursday, March 11, 2010 9:46 AM To: <ccie_voice@onlinestudylist.com> Subject: [OSL | CCIE_Voice] PSTN Call Distortion Between T1/E1 Perhaps this is something simple that I am overlooking but I have the generic setup running in my home lab with 3 gateways and one PSTN router. 2 of the gateways are T1 and one is E1. The PSTN router is also running CME with a 7960 to simulate PSTN destinations. Calls from any site to the PSTN phone are fine. Calls between T1 sites are fine. Calls between T1 and E1 sites are distorted, like the gain is way too high. I tried playing with the gain on the voice-port but no luck. I'm not finding much online or in Cisco docs. Any suggestions? Thanks, Jason ________________________________ http://slash128.com
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