With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
trkPaNegotiatedTrunkType
trk Pa Negotiated Trunk Type
This attribute gives the actual value of trunkType that the PathAdmin has decided on after negotiation with the far end PathAdmin. If there is disagreement between the two PathAdmin's trunkType provisionable attributes the provisioned values are used on both sides. That is, both sides maintain their provisioned value..
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IPHost Network monitor allows you to monitor trkPaNegotiatedTrunkType 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.