With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
trkPaAdphoIndex
trk Pa Adpho Index
This variable represents the trkPaAdphoTable specific index for the trkPaAdphoTable.
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IPHost Network monitor allows you to monitor trkPaAdphoIndex 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.