With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
x25DtePeerCugIndex
x25 Dte Peer Cug Index
1.3.6.1.4.1.562.2.4.1.90.2.12.1.10
This attribute specifies the index of the Closed User Group facility to signal. A value of 'DEF' indicates the use of the value from the cugIndex attribute of the X25Dte component. A value of null (empty string) indicates no CUG facility is to be signalled. If a cugIndex is provisioned to be signalled, the cugoaIndex attribute must be null.
Back to Nortel-Magellan-Passport-X25DteMIB MIB page.
IPHost Network monitor allows you to monitor x25DtePeerCugIndex 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.