Mitel 6940 Phone Manual

The Mitel 6940 is a SIP-based IP phone designed for business environments, featuring a high-resolution color display, integrated Gigabit Ethernet switch, support for multiple lines and call appearances, HD audio, programmable keys, built-in Bluetooth and Wi-Fi capabilities, and Power over Ethernet (PoE). It is compatible with Mitel MiVoice Business and other SIP-based platforms. Below are key sections for safety, features, installation, setup, 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 Call Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Color LCD display, Handset, Base unit, Ethernet ports, Programmable keys, Volume controls, Headset jack.

Feature	Description
Display	High-resolution color LCD with adjustable contrast
Network Ports	Two 10/100/1000 Mbps Ethernet ports (LAN and PC)
Audio	HD voice quality, wideband audio support
Wireless	Integrated Bluetooth and Wi-Fi (optional)
Power	Power over Ethernet (PoE) or external power adapter
Programmable Keys	Configurable for line appearances, speed dial, features
Headset Port	3.5mm jack for wired headset connection
Volume Controls	Separate controls for handset, speaker, ringer
Message Waiting Indicator	LED for voicemail notification
Supported Protocols	SIP, TCP/IP, UDP, RTP, SRTP, TLS

Installation

Unpack and inspect contents. Place on stable surface.

Connect to network: Use Ethernet cable from switch/router to LAN port on phone.
Connect computer (optional): Use second Ethernet cable from PC port to computer.
Connect handset: Plug coiled handset cord into handset jack.
Apply power: Use PoE from switch or connect external power adapter.
Connect headset (optional): Plug into 3.5mm headset jack.

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

First-Time Setup

Power on phone; follow on-screen prompts.

Network configuration: Phone will attempt DHCP; static IP can be configured via keypad.
Server configuration: Enter SIP server address provided by administrator.
User credentials: Enter extension number and SIP password.
Verify registration: Check display for registered status.
Set preferences: Configure time, date, ring tones, display language.

CAUTION! Handle handset cord carefully to avoid damage to connectors.

Specifications

Display: 4.3-inch color TFT, 480 x 272 pixels.
Network: Dual 10/100/1000 Mbps Ethernet, IEEE 802.3af PoE.
Audio Codecs: G.711, G.722, G.729, Opus.
Wireless: Bluetooth 4.0, Wi-Fi 802.11a/b/g/n (region dependent).
Programmable Keys: Up to 28 configurable keys.
Supported Features: Call hold, transfer, conference, forward, DND.
Power Consumption: 3.5W typical (PoE Class 2).
Operating Environment: 0°C to 40°C, 20% to 80% humidity.
Compliance: SIP 2.0 RFC3261, TLS, SRTP.

Controls and Settings

Access menu via dedicated Menu button or touch screen. Keypad: Standard 12-key dial pad, navigation keys, soft keys.

Physical Buttons: Hold, Transfer, Conference, Volume Up/Down, Mute, Headset, Speakerphone.

Settings Menu: Network configuration, SIP settings, Audio settings (ringer volume, handset volume), Display settings (contrast, backlight time), Time/Date, Language selection, Feature configuration (call forward, DND). Programmable Keys: Assign functions via web interface or phone menu.

Connecting Devices

Network: LAN port to switch. Computer: PC port to computer NIC. Headset: 3.5mm jack.

Ensure phone is powered off before connecting devices.
Use Cat5e or better Ethernet cables for network connections.
For PoE, verify switch supports IEEE 802.3af.
For Wi-Fi/Bluetooth, enable via settings menu and pair devices.

Tip: Label cables for easy identification during maintenance.

Advanced Call Features

Supports standard and advanced telephony features.

Make call: Lift handset or press Speakerphone, dial number.
Answer call: Lift handset, press Speakerphone, or press Answer soft key.
Hold: Press Hold button to place call on hold.
Transfer: During call, press Transfer, dial target, press Transfer again.
Conference: During call, press Conference, dial second party, press Conference again to merge.
Call Forward: Configure via menu to forward calls to another number.
Do Not Disturb (DND): Enable via menu or programmable key.
Speed Dial: Assign numbers to programmable keys.
Call History: Access via menu to view missed, received, dialed calls.

WARNING! Do not use phone with wet hands. Keep liquids away from device.

Accessibility Features

Visual Alerts: Flashing LED for incoming calls. Audio Adjustments: Independent volume controls for ringer, handset, speaker. TTY Compatible: When used with compatible TTY device. Large Font Option: Available in display settings.

Care & Cleaning

Disconnect power before cleaning. Use slightly damp, lint-free cloth. Do not use abrasive cleaners or solvents.

CAUTION! Avoid getting moisture into openings. Never spray cleaner directly on phone.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business use. CE marked. ICES-003 compliant. RCM mark (Australia). For full compliance details, see product label. Copyright © Mitel Networks Corporation. For support, visit www.mitel.com or contact your authorized Mitel dealer.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power source	Check PoE switch or power adapter connection; try different outlet.
No network connectivity	Cable/config	Check Ethernet cable; verify DHCP/static IP settings; restart phone.
Not registered to server	Credentials/server	Verify SIP server address, extension, and password; check network firewall.
No audio	Volume/mute	Check volume settings; ensure mute is off; test with handset and speakerphone.
Display is blank	Power/backlight	Check power; adjust display contrast and backlight timeout in settings.
Cannot make/receive calls	Registration/line	Verify phone is registered; check line configuration with administrator.
Poor audio quality	Network/codec	Check network for packet loss; try different audio codec in settings.

Reset: Options menu > Settings > System > Reset to factory defaults (requires admin password).

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