With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vncsIndex
vncs Index
1.3.6.1.4.1.562.2.4.1.44.1.1.10
This variable represents the index for the vncs tables.
Back to Nortel-Magellan-Passport-VncsCallServerMIB MIB page.
IPHost Network monitor allows you to monitor vncsIndex 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 switches right now.