With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
hgAvailabilityUpdates
hg Availability Updates
This attribute counts the number of availability update packets received by the hunt group from its members. This counter wraps to 0 when it exceeds its maximum value.
Back to Nortel-Magellan-Passport-HuntGroupMIB MIB page.
IPHost Network monitor allows you to monitor hgAvailabilityUpdates 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.
