With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vctVcPreviousState
VC Tester Vc Previous State
1.3.6.1.4.1.562.2.4.1.5130.4.10.1.3
This attribute displays the previous state of call control. This is a valuable field to determine how the processing is progressing.
Back to Nortel-Magellan-Passport-VcTesterMIB MIB page.
IPHost Network monitor allows you to monitor vctVcPreviousState 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 multiplexers right now.