[cisco-voip] Modem over VG248

[Pawlowski, Adam]

Hello,

     I am attempting to configure and successfully test a modem over the VG248 gateway. Faxing seems to work with no issues whatsoever, same with voice calls. I have the VG248 configured for passthrough using g711ulaw , Fax Relay is disabled. I configured the gateway (WS-X6600-T1) to disable fax relay, Cisco fax protocol. I instituted mgcp modem relay  under voip with the appropriate NSE and g711ulaw codec statements. The active call display shows MODEMPASS on the calls, but, it will never connect. Has anyone gotten this to work ? Any tips or items to look for ? I haven't had much luck in identifying anything with the traces. Clock timing is off the line.

Thanks for your time

Adam Pawlowski
CIT/OSS UCS Technician
University at Buffalo