With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
frUniSigDisconnectTimer
Frame Relay Uni Sig Disconnect Timer
This attribute specifies the time the network will wait for a response to the DISCONNECT message sent to the user. Upon timer expiry, the RELEASE message is sent. This value is specified in seconds.
Back to Nortel-Magellan-Passport-FrameRelayUniMIB MIB page.
IPHost Network monitor allows you to monitor frUniSigDisconnectTimer 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.