With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
rsaConnectionVcCallingNpi
rsa Connection Vc Calling Npi
This attribute displays the Numbering Plan Indicator (NPI) of the calling end.
Back to Nortel-Magellan-Passport-ServerAccessRsaMIB MIB page.
IPHost Network monitor allows you to monitor rsaConnectionVcCallingNpi 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.