With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gsmBcMateBearerChannel
gsm Bc Mate Bearer Channel
This attribute contains the name of the mate GsmIwfBearerChannel that this GsmIwfBearerChannel is involved with in the currently active call.
Back to Nortel-Magellan-Passport-GsmIwfMIB MIB page.
IPHost Network monitor allows you to monitor gsmBcMateBearerChannel on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel multiplexers right now.