With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
tdmaCsVoiceLaw
tdma Cs Voice Law
This attribute specifies the voice law to be established for the IWF to PSTN modem link for calls established by this TdmaIwfCallServer. This attribute has one of the following values: aLaw: A protocol for encoding voice-band audio, Pulse Code Modulation (PCM). muLaw: A protocol for encoding voice-band audio, PCM. Note that this value must match the voice law used at the DMS- MTX connected to this TdmaIwfCallServer.
Back to Nortel-Magellan-Passport-TdmaIwfMIB MIB page.
IPHost Network monitor allows you to monitor tdmaCsVoiceLaw 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.