With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gvcIfDlciVcCallingDna
General Vc Interface Dlci Vc Calling Dna
This attribute displays the Data Network Address (Dna) of the calling end.
Back to Nortel-Magellan-Passport-GeneralVcInterfaceMIB MIB page.
IPHost Network monitor allows you to monitor gvcIfDlciVcCallingDna 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.