NEC AT-55M Caller ID Hands-Free Business Telephone User Guide

About this manual

The NEC AT-55M is a Caller ID hands-free business telephone designed for connection to KTS/PBX systems. The manual covers safety precautions, package contents, and detailed installation steps including battery replacement (using 3 AA batteries) and connecting the telephone network line cord.

The guide details initial setup procedures such as setting the calendar, LCD contrast, ringing volume/tone, dialing mode, and PBX trunk access codes. It also explains basic operations like making and receiving calls via handset or speakerphone, using features like call hold, one-touch dialing, memory redial, and microphone mute.

What's inside

• Safety Instructions
• Package Contents
• Installing the Batteries
• Connecting the Telephone Network
• Setting the Calendar
• Selecting the Ringing Tone
• Making a Call using Handset
• Receiving a Call using Speakerphone
• Call Hold and Redial Features
• Troubleshooting Guide

Specifications

Frequently asked questions

What batteries are required for the NEC AT-55M?

The telephone requires three high quality AA size batteries, with alkaline LR6 batteries recommended.

Can I connect a fax machine to the same line as this telephone?

No, you should not connect other analog devices such as FAX/telephone on the same line because parallel connection is not guaranteed.