With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gsmBcTrunkGrpIndex
gsm Bc Trunk Group Index
This variable represents an index for the gsmBc tables.
Back to Nortel-Magellan-Passport-GsmIwfMIB MIB page.
IPHost Network monitor allows you to monitor gsmBcTrunkGrpIndex 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.