With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
vctDnaIncNormalPriorityReverseCharge
VC Tester Dna Inc Normal Priority Reverse Charge
1.3.6.1.4.1.562.2.4.1.5130.2.12.1.3
This attribute, if set to a value of allowed indicates that incoming normal priority, reverse charged calls (from the network to the DTE) can be made to this Dna. If set to a value of disallowed, then such calls cannot be made to this Dna - such calls will be cleared by the local DCE. This attribute, together with the incHighPriorityReverseChargeCalls attribute corresponds to the ITU-T 'Reverse Charging Acceptance' feature for Dna's in that reverse charged calls are accepted if both attributes are set to a value of allowed. This attribute is ignored if the corresponding attribute, incCalls is set to a value of disallowed.
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