With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
gsmBcLayer1ActiveMode
gsm Bc Layer1 Active Mode
This attribute indicates the active physical layer protocol between the mobile and the IWF. Valid values are: v110, GSM V.110 rate adaptation scheme for interworking V-series connections to an Integrated Services Digital Network (ISDN). aTrau, GSM A-Transcoder/Rate Adaptor (A-TRAU).
Back to Nortel-Magellan-Passport-GsmIwfMIB MIB page.
IPHost Network monitor allows you to monitor gsmBcLayer1ActiveMode 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 multiplexers right now.
