Mitel 6910 IP Phone Manual

The Mitel 6910 IP Phone is a business-grade SIP desk phone featuring a high-resolution graphical display, support for up to 12 programmable line/feature keys, integrated Gigabit Ethernet switch, PoE support, wideband audio, and advanced telephony features. It is designed for use with Mitel MiVoice Business and other SIP-based IP PBX systems. 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 Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Graphical LCD display, 12 programmable keys, Handset, Speakerphone, Ethernet ports, Headset jack.

Feature	Description
Display	High-resolution graphical LCD with backlight
Programmable Keys	12 keys for line appearances, speed dials, or features
Audio	Wideband (HD) audio support for handset and speakerphone
Network	Dual Gigabit Ethernet ports with integrated switch and PoE support (802.3af)
Headset Port	RJ9 connector for optional headset
Handset	Standard RJ9 handset with hearing aid compatible (HAC) receiver
VOLUME Keys	Adjusts handset, speaker, ringer, and headset volume
MUTE	Mutes the microphone
NAVIGATION Keys	4-way navigation and OK key for menu access
POWER	Indicates power and network status

Installation

Unpack and inspect contents. Place on stable desk surface.

Connect to Network: Use Ethernet cable to connect LAN port to network switch. Use PC port to connect a computer.
Connect Handset: Plug coiled handset cord into RJ9 handset jack.
Power the Phone: Use Power over Ethernet (PoE) from switch or connect the optional AC power adapter.
Connect Optional Headset: Plug into RJ9 headset jack.

WARNING! Use only the provided or approved power adapter. Ensure cables are routed to prevent tripping hazards.

First-Time Setup

Phone will boot and attempt to obtain network configuration via DHCP.

Check Network Registration: Observe display for IP address and registration status.
Configure SIP Account: Access menu via NAVIGATION keys to enter SIP server, username, and password provided by your system administrator.
Set Language: In SETTINGS menu, select preferred language (default is ENGLISH).
Set Date/Time: Configure manually or via NTP server.
Program Keys: Assign line appearances, speed dials, or features (BLF, call forward) to the 12 programmable keys.

CAUTION! Configuration changes may require a reboot. Save settings before exiting.

Specifications

Display: High-resolution graphical LCD.
Telephony Protocols: SIP (Session Initiation Protocol).
Audio Codecs: G.711, G.722, G.729, Opus.
Network: Dual 10/100/1000 Mbps Ethernet ports, 802.3af PoE.
Programmable Keys: 12 keys with multi-color LED indicators.
Supported Features: Call Hold, Transfer, Conference, Forward, Voicemail, BLF.
Power Source: 802.3af PoE or 48V DC power adapter.
Operating Temp: 0°C to 40°C (32°F to 104°F).

Controls and Settings

Access menu via NAVIGATION keys and OK button. Softkeys: Context-sensitive functions shown on display.

Basic Controls: Handset, SPEAKER key, MUTE, VOLUME keys, NAVIGATION cluster, programmable keys.

Settings Menu: Network (IP, DHCP, VLAN), SIP Account, Audio (Volume, Tone), Display (Contrast, Backlight Timeout), Time/Date, Key Programming, Security (Admin Password). Features: Call Forward, Do Not Disturb, Ring Tones, Speed Dial, Directory.

Connecting Devices

Network: LAN port to switch, PC port to computer. Peripherals: Handset, headset.

Turn off or unplug devices before connecting cables.
Match cables to correct ports (Ethernet to LAN, handset to RJ9 handset jack).
For PoE, ensure your network switch provides 802.3af power.

Tip: Use a wired network connection for best voice quality and reliability.

Advanced Features

Supports advanced business telephony features.

Speed Dial: Program numbers onto programmable keys for one-touch dialing.
Busy Lamp Field (BLF): Program a key to monitor another extension's status.
Call Transfer: Press TRANSFER, dial target number, press TRANSFER again or hang up for blind transfer.
Conference: Establish a call, press CONFERENCE, dial next party, press CONFERENCE again to join.
Call Forward: Activate via menu or programmed key to forward calls to another number.
Do Not Disturb: Activate to send calls directly to voicemail.
Directory: Access local or corporate directory to place calls.
Headset Operation: Press HEADSET key or programmed key to toggle headset mode.

WARNING! Feature availability depends on system configuration. Contact your administrator.

Accessibility Features

Hearing Aid Compatible (HAC) Handset: Meets FCC standards. Visual Alerts: Flashing LED for incoming calls. Adjustable Ringer Volume and Tone: Set via volume keys or menu. High-Contrast Display: Adjustable in settings.

Care & Cleaning

Unplug power before cleaning. Use a soft, slightly damp cloth. Do not use abrasive cleaners, solvents, or sprays directly on the phone.

CAUTION! Avoid getting moisture into openings. Keep away from extreme heat and direct sunlight.

Regulatory Information

FCC Part 15 & 68: Complies with rules for digital devices and telephone equipment. CE Marked: Conforms to European directives. Industry Canada ICES-003. This device may not cause harmful interference and must accept any interference received. For support, visit www.mitel.com or contact your authorized Mitel dealer.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power/display	Power source	Check PoE switch or power adapter connection; try another outlet.
No network registration	Network/SIP config	Check Ethernet cable; verify DHCP is enabled; confirm SIP account credentials.
No dial tone	Registration/line	Ensure phone is registered to SIP server; check with system administrator.
One-way/no audio	Network/Codec	Check firewall/NAT settings; verify audio codec negotiation with server.
Keys not working	Programming	Re-program the key via the settings menu; reboot phone.
Poor audio quality	Network congestion	Check network for packet loss/jitter; prioritize voice traffic (QoS).

Reset: Menu > Settings > System > Reset to Factory Defaults (requires admin password).

Service: Contact your system administrator or authorized Mitel dealer.