Mitel Phone Manual 6940

The Mitel 6940 is a feature-rich SIP IP phone designed for business environments, offering high-quality audio, a large color display, programmable keys, support for multiple lines, and integration with Mitel communication platforms. Below are key sections covering safety, 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 to Network 7. Basic Operations 8. Advanced Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Large color LCD display, Handset, Speakerphone, Programmable keys (line/feature), Navigation cluster, Volume controls, Ethernet ports.

Feature	Description
Display	High-resolution color LCD with adjustable contrast
Audio	Wideband audio support for superior call clarity
Programmable Keys	Configurable for line appearances, speed dial, features
Ethernet Ports	Dual 10/100/1000 Mbps ports (LAN, PC) with PoE support
Headset Port	3.5mm jack for wired headset connectivity
Speakerphone	Full-duplex for hands-free conversations
Power Options	Power over Ethernet (PoE) or external power adapter
Protocol Support	SIP (Session Initiation Protocol)
Firmware	Field-upgradable via web interface or provisioning server
Mounting	Desk stand or wall mount options

Installation

Unpack and inspect contents. Place on stable surface or mount on wall.

Connect to network: Use Ethernet cable from switch/router to LAN port.
Optional PC connection: Use second Ethernet cable from PC port to computer.
Connect handset: Plug coiled handset cord into handset jack.
Power the phone: Use PoE from switch or connect external power adapter.

WARNING! Use only approved power adapter. Ensure cables are securely connected.

First-Time Setup

Power on phone; follow initialization prompts.

Network configuration: Obtain IP address via DHCP (default) or set manually.
Server configuration: Enter SIP server address, user credentials provided by administrator.
Verify registration: Check display for extension number and registration status.
Adjust settings: Use phone menu to set time, date, ring tones, volume levels.

CAUTION! Handle phone with care; avoid placing heavy objects on it.

Specifications

Display: 4.3-inch color TFT LCD, 480 x 272 pixels.
Audio Codecs: G.711, G.722, G.729, Opus.
Network: Dual 10/100/1000 Mbps Ethernet with PoE (802.3af).
Programmable Keys: Up to 24 configurable keys (physical and on-screen).
Power Consumption: 3.5W typical (PoE or 5V DC adapter).
Supported Protocols: SIP (RFC 3261), TCP/IP, UDP, RTP, RTCP, DHCP, DNS.
Operating Temperature: 0°C to 40°C (32°F to 104°F).
Compliance: FCC Part 15, CE, RCM, RoHS.

Controls and Settings

Access menu via dedicated Menu button or soft keys. Front buttons: MESSAGE, DIRECTORY, CONTACTS, NAVIGATION cluster, VOLUME, MUTE, HEADSET, SPEAKERPHONE.

Display Soft Keys: Context-sensitive for call handling and features.

Basic Settings: Time/Date, Ring Tones, Display Contrast, Language. Network: IP Configuration, VLAN, QoS. SIP Configuration: Server, Proxy, User ID, Authentication. Features: Call Forward, Do Not Disturb, Speed Dial, BLF (Busy Lamp Field).

Connecting to Network

LAN: Connect Ethernet cable to LAN port. PC: Optional connection via PC port.

Ensure network switch/router is powered on and operational.
Use standard CAT5e or higher Ethernet cable.
For PoE, ensure switch provides 802.3af power; otherwise use adapter.
Check network LEDs on phone (steady green indicates link).

Tip: Use quality cables and avoid running near power lines to reduce interference.

Basic Operations

Making and receiving calls, hold, transfer, conference.

Make call: Lift handset or press SPEAKERPHONE, dial number, press Dial soft key.
Answer call: Lift handset, press SPEAKERPHONE, or press Answer soft key.
Hold: Press Hold button during active call.
Transfer: Press Transfer, dial target number, announce call, complete transfer.
Conference: Establish first call, press Conference, dial second party, press Conference again.
Volume adjustment: Use VOLUME buttons during call or idle.
Mute: Press MUTE button to toggle microphone on/off.
Voicemail: Press MESSAGE button or dial voicemail access number.

WARNING! Do not disassemble phone; no user-serviceable parts inside.

Advanced Features

Programmable Keys: Assign speed dial, BLF, call park, etc. via web interface. Call Logs: View missed, received, dialed calls. Directory: Store contacts locally or access corporate directory. XML Applications: Support for custom services via browser.

Care & Cleaning

Unplug power before cleaning. Use soft, dry cloth; for stubborn stains, dampen cloth with water only.

CAUTION! Do not use abrasive cleaners, solvents, or spray directly on phone.

Regulatory Information

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power source/cable	Check PoE switch or power adapter; ensure cable is securely connected.
No network connection	Cable/DHCP	Verify Ethernet cable; check LAN LED; restart phone; confirm DHCP server.
No dial tone	Registration/SIP	Check SIP configuration; verify username/password; confirm server reachable.
Poor audio quality	Network/QoS	Enable QoS on network; check for packet loss; ensure correct codec selection.
Display issues	Settings/power	Adjust contrast in menu; restart phone; check for firmware updates.

Reset: Press and hold # key during boot for factory reset (caution: erases all settings).

Service: Contact authorized Mitel service provider; www.mitel.com/support