Mitel 8528 Phone System Manual

The Mitel 8528 is a feature-rich digital business telephone designed for use with Mitel communications platforms. It offers a high-resolution graphical display, programmable feature keys, integrated speakerphone, headset compatibility, and support for multiple lines. Below are key sections for features, installation, configuration, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Advanced Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Graphical LCD display, Programmable feature keys, Message waiting indicator, Integrated speakerphone, Headset jack, Volume controls.

Feature	Description
Graphical Display	High-resolution screen for call information and menus
Programmable Keys	Customizable buttons for speed dial, features, and line appearances
Speakerphone	Full-duplex hands-free communication
Headset Jack	For hands-free operation with compatible headset
Message Waiting Indicator	LED shows voicemail and message alerts
Volume Controls	Separate controls for ringer, speaker, and handset
Mute	Temporarily disables microphone
Hold	Places active call on hold
Conference	Allows multi-party conference calls
Transfer	Transfers calls to another extension

Installation

Unpack and inspect contents. Place on stable surface near network connection.

Connect to network: Use Ethernet cable to connect phone to network jack.
Connect power: Use provided power adapter or Power over Ethernet (PoE).
Connect handset: Attach coiled handset cord to handset and base.
Connect headset: Plug compatible headset into headset jack if needed.

WARNING! Use only Mitel-approved power adapters. Ensure network cable is securely connected.

First-Time Setup

Power on phone; follow on-screen prompts.

Network registration: Phone will automatically attempt to register with Mitel system.
Set language: In SETTINGS menu, select preferred language (default ENGLISH).
Configure time/date: Set correct time zone and date format.
Program feature keys: Assign frequently used functions to programmable keys.

CAUTION! Do not disconnect power during initial setup process.

Specifications

Display: 128 x 64 pixel graphical LCD with backlight.
Network Interface: 10/100 Mbps Ethernet, PoE IEEE 802.3af compliant.
Audio: Wideband audio support, G.711, G.729 codecs.
Connectors: Ethernet (RJ45), Handset (RJ9), Headset (RJ9), Power (DC jack).
Programmable Keys: Up to 24 configurable feature keys.
Supported Protocols: SIP, MiNet.
Power Source: 48V DC via PoE or external power adapter.
Operating Temperature: 0°C to 40°C (32°F to 104°F).

Controls and Settings

Access menu via MENU button. Navigation: Use arrow keys and SELECT button.

Basic Controls: Handset lift/switchhook, Speakerphone, Mute, Hold, Volume up/down.

Display Settings: Contrast, Backlight timeout, Screen saver. Audio Settings: Ringer type/volume, Speaker volume, Headset gain. Network Settings: IP configuration (DHCP/static), VLAN settings. Feature Settings: Call forwarding, Do not disturb, Speed dial programming. System Settings: Language, Time/date, Password protection.

Connecting Devices

Network: RJ45 Ethernet port. Handset: RJ9 connector. Headset: RJ9 headset jack.

Ensure phone is powered off before connecting devices.
Connect Ethernet cable to network port and switch/router.
Connect handset cord between phone base and handset.
For headset use, plug into headset jack and enable in settings.

Tip: Use Cat5e or better Ethernet cable for optimal performance.

Advanced Features

Supports advanced telephony features for business use.

Call Transfer: Press TRANSFER, dial extension, press TRANSFER again.
Conference Calls: Press CONFERENCE, dial first party, press CONFERENCE, dial next party.
Call Forwarding: Menu > Features > Call Forward > set destination.
Speed Dial: Program frequently dialed numbers to feature keys.
Do Not Disturb: Temporarily block incoming call notifications.
Message Waiting: Visual indicator and stutter dial tone for voicemail.
Call Log: View missed, received, and dialed calls.
Directory Access: Search corporate directory from phone display.

WARNING! Conference calls may require system licensing. Contact administrator.

Accessibility Features

Visual Alerts: Flashing message waiting LED. Audio Alerts: Adjustable ringer volume and patterns. TTY Compatibility: Supports teletypewriter devices when properly configured.

Care & Cleaning

Unplug power before cleaning. Use slightly damp cloth for exterior; dry thoroughly.

CAUTION! Do not use abrasive cleaners or solvents. Avoid liquid contact with openings.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business environments. CE marked for European compliance. Copyright © Mitel Networks Corporation. All trademarks are property of their respective owners. For technical support, visit www.mitel.com or contact your authorized Mitel dealer.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display/power	Power connection	Check power adapter/PoE; ensure Ethernet cable is PoE-capable.
No network connection	Cable/configuration	Verify Ethernet cable; check network settings; restart phone.
No audio	Volume settings	Adjust volume controls; check mute status; verify handset connection.
Calls not completing	Network/system	Verify system registration; check with system administrator.
Feature keys not working	Programming	Re-program feature keys; reset to defaults if needed.

Reset: Menu > Settings > System > Reset to factory defaults (use caution).

Service: Contact authorized Mitel dealer or visit www.mitel.com/support