MITEL 5000 Communications Platform 8528 Telephone User Guide

About this manual

This guide explains how to use the Mitel 8528 Telephone, covering basic operation, feature codes, call handling, and system configuration. It includes safety information, power requirements, and troubleshooting tips for the desk phone used with the 5000 Communications Platform.

Key sections describe answering and placing calls, using feature buttons, managing messages, Do‑Not‑Disturb, conference calls, and emergency dialing, as well as power adapter specifications and safety precautions for reliable operation.

What's inside

• Feature Buttons
• Commonly Used Feature Codes
• Answering Calls
• Placing Calls
• Transferring Calls
• Forwarding Calls
• Conference Calls
• Safety Instructions
• Power Requirements

Specifications

Frequently asked questions

How do I answer an incoming call?

Lift the handset or press the Speaker button (4) to answer the call.

How do I place an emergency call?

Dial 911 in the U.S. or 999/112 in Europe; the system places the call immediately.

What power adapter is required for the telephone?

The telephone requires the Mitel Universal 24 VDC power adapter, part number 50005300.