I've come across a single post from another individual having the same issue from early 2009 but no responses. I've also come across some hints at PCM type, but not finding the answer.
From: ccie_voice-boun...@onlinestudylist.com [mailto:ccie_voice-boun...@onlinestudylist.com] On Behalf Of Jason Granat Sent: Thursday, March 11, 2010 9:54 AM To: Jeff Price (jeffpric); ccie_voice@onlinestudylist.com Subject: Re: [OSL | CCIE_Voice] PSTN Call Distortion Between T1/E1 Nope. I have all hardware here in my home lab. No VPN's. From: Jeff Price (jeffpric) [mailto:jeffp...@cisco.com] Sent: Thursday, March 11, 2010 9:48 AM To: Jason Granat; ccie_voice@onlinestudylist.com Subject: RE: [OSL | CCIE_Voice] PSTN Call Distortion Between T1/E1 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 ________________________________ http://slash128.com ________________________________ http://slash128.com
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