With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
cRRowStatusEntry
Call R Row Status Entry
A single entry in the table represents a single cR component.
Back to Nortel-Magellan-Passport-CallServerMIB MIB page.
IPHost Network monitor allows you to monitor cRRowStatusEntry 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.