[cisco-voip] WAN/LAN QOS Quandry, are you clairvoyant?

[Ryan Ratliff]

What codec is being used for the call that experiences clipping?
Is VAD disabled (both in CCM and on the voip dial-peer)?
Is MTP required set for the gateway in CUCM?

-Ryan

On Sep 24, 2008, at 4:28 PM, Andrew Zerger wrote:

I am just posting here out of desperation, I have tried very hard to  
keep it short. I am just trolling for ideas here because I am totally  
stumped.

I have a remote site where a certain DID is clipping nearly every  
inbound call. It exists across a WAN link from Callmanager, but I can  
call numbers that ring
gateways across 2 WAN hops from this site, answer the call on an IP  
phone on site,  and I have no problems. The gateway and the phone of  
concern share
a LAN, although Callmanager IS across a WAN from the phone and Gateway.


So phone in site A and gateway in site C seem to work well together,  
but phone in site A and gateway in site A do not.

It is worth mentioning that nobody else attached to site A via layer  
2 has this problem, it is just a certain DID range/dial-peer (which,  
of course, looks technically
identical to the rest of the functioning dial-peers).

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