Hi

I have a customer with an SV 9100 CP 10 with all IP phones multiple locations PRI at the main location

And just IP phones at the other locations

The system has been in for years without any problems with call quality that we knew of


About three weeks ago one of the locations started experiencing some poor call quality

Incoming and outgoing calls

I talk to him yesterday over the phone and I could hear it there was some Poor call quality issues going on

I went out there today with their data guy and the call seem to be fine so it was really hard to try to figure out what it could be but I did upgrade the phone system to the latest and greatest software just to double check and make sure that it wasn’t a software issue I’m just wondering what’s the best way to troubleshoot this

About an hour after I left they called and said it started happening again on an outbound call

Just not sure if we’re supposed to use wire shark or dim trace to try to figure out what it could be and then how do we get someone to do decipher that information

I’m pretty sure they using the VPN and VLans

I’m just wondering if there could possibly be any settings on the NEC that I could adjust but the fact that it’s only a three week old problem and they had The system for a long time seems really strange

Any thoughts would be greatly appreciated

Thanks

JD