With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vrSnmpSysDescription
Virtual Router Snmp Sys Description
This attribute presents a textual description of the entity. This value should include the full name and version identification of the system's hardware type, software operating-system, and networking software.
Back to Nortel-Magellan-Passport-BaseSnmpMIB MIB page.
IPHost Network monitor allows you to monitor vrSnmpSysDescription 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 modems right now.