Northern Telecom Unity I User Manual

Highlights modular design and push-button dialing for the Unity phones.

Describes the visual alert for incoming calls and message notifications.

Covers Link, Release, PBX/CO, and Alerter controls on the phone.

Identifies the location for storing phone numbers and index information.

Step-by-step instructions for connecting the handset cord.

Instructions for setting up the phone on a desk, including line cord connection.

Procedure for inserting and replacing the directory card and cover.

Detailed explanations of various Unity I and Unity II telephone features.

Explains the message waiting lamp and tone alerter functionality.

Procedures for verifying dial tone, call out, and ringing functions.

Advice on maintaining the telephone and safe usage practices.

Information on certified equipment, installation, and network requirements.

Explains load numbers for determining telephone capacity on a line.