With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
x25DtePeerCpTable
x25 Dte Peer Cp Table
1.3.6.1.4.1.562.2.4.1.90.2.12
This group contains the call parameters used to establish a call to/ from the remote host identified by this Peer component
Back to Nortel-Magellan-Passport-X25DteMIB MIB page.
IPHost Network monitor allows you to monitor x25DtePeerCpTable 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.