With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
nmisTelnetMaxAllowedSessions
nmis Telnet Max Allowed Sessions
This attribute indicates the maximum number of simultaneous sessions the manager will allow.
Back to Nortel-Magellan-Passport-MgmtInterfacesMIB MIB page.
IPHost Network monitor allows you to monitor nmisTelnetMaxAllowedSessions 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.