With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vctVcCalledDna
VC Tester Vc Called Dna
1.3.6.1.4.1.562.2.4.1.5130.4.10.1.7
This attribute displays the Data Network Address (Dna) of the called (destination) DTE to which this call is sent. This address if defined at recieving end will complete Vc connection.
Back to Nortel-Magellan-Passport-VcTesterMIB MIB page.
IPHost Network monitor allows you to monitor vctVcCalledDna 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.