With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
traceRcvrX25DcUserData
trace Receiver X25 Dc User Data
1.3.6.1.4.1.562.2.4.1.106.2.2.3.10.1.8
This attribute contains the user data. It is a 0 to 16 byte length string which is appended to the call request packet that is presented to the called (destination) DTE.
Back to Nortel-Magellan-Passport-X25TraceRcvrMIB MIB page.
IPHost Network monitor allows you to monitor traceRcvrX25DcUserData 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 secure routers right now.