With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
traceRcvrX25DnaNumberingPlanIndicator
trace Receiver X25 Dna Numbering Plan Indicator
1.3.6.1.4.1.562.2.4.1.106.2.2.2.10.1.1
This attribute indicates the Numbering Plan Indicator (NPI) of the Dna that is entered. The address may belong to an E.164 or X.121 plan.
Back to Nortel-Magellan-Passport-X25TraceRcvrMIB MIB page.
IPHost Network monitor allows you to monitor traceRcvrX25DnaNumberingPlanIndicator 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 speech servers right now.