With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
cRNpiIndex
Call R Npi Index
This variable represents the index for the cRNpi tables.
Back to Nortel-Magellan-Passport-CallServerMIB MIB page.
IPHost Network monitor allows you to monitor cRNpiIndex 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.