With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
trkOperTable
trk Operational Table
This is the group of operational attributes supported by the Trunk.
Back to Nortel-Magellan-Passport-TrunksMIB MIB page.
IPHost Network monitor allows you to monitor trkOperTable 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 speech servers right now.