Nortel Networks M3820 User Manual

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Digital Telephone IP Adapter Installation and Administration Guide

Using the digital telephone

 Standard 2.1

Place outgoing calls by pressing the calling key to receive an outgoing line.

A Digital Telephone IP Adapter unit receives host-controlled incoming calls 
over the IP network.

You can place an outbound call from a Digital Telephone IP Adapter unit station 
in one of the following ways:

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method 1: Lift the telephone handset.
This method automatically initiates a host-controlled call.

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method 2: Press the calling key. 
Pressing the host calling key initiates a host-controlled call.

To place a host-controlled call:

Lift the telephone handset or press the host calling key.

Result: You hear a dial tone over a connection with the host PBX.

Note: If a connection to the host PBX cannot be established within a time-
out period or no resources are available to carry the call, you hear a reorder 
dial tone (fast busy signal), and one of the following messages appears on 
the telephone display:

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Release and Try Again

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Bandwidth Limit

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DSP Limit

Bandwidth limit indicates that there was not enough bandwidth available in 
the system to complete the requested task.