With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
apsTestDuration
aps Test Duration
This attribute is the duration (in minutes) that test data will be transmitted. In the case of an externalLoop, this is the time that the loop is in effect. Note that dataStartDelay does not apply to the externalLoop.
Back to Nortel-Magellan-Passport-ApsMIB MIB page.
IPHost Network monitor allows you to monitor apsTestDuration 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.