The Mitel 6865 is a feature-rich SIP desk phone designed for business environments, offering high-quality audio, a large color display, programmable keys, and support for advanced telephony features. Below are key sections covering features, installation, configuration, operation, and troubleshooting.
Key components: Large color LCD display, Handset, Speakerphone, Programmable keys, Ethernet ports, Headset jack.
| Feature | Description |
|---|---|
| Display | 3.5-inch color LCD with backlight |
| Audio | HD Voice, wideband audio support |
| Network | Dual 10/100/1000 Mbps Ethernet ports |
| Programmable Keys | Up to 24 configurable line/feature keys |
| Headset Support | Integrated headset jack (EHS compatible) |
| Power Options | Power over Ethernet (PoE) or AC adapter |
| Conference | Built-in 3-party conference capability |
| Security | Secure Boot, encrypted configuration |
| Codecs | G.711, G.722, G.729, Opus |
| Protocols | SIP, LLDP-MED, 802.1X |
Unpack and inspect contents. Place on stable surface.
WARNING! Use only approved power adapter. Ensure proper ventilation around device.
Power on phone; follow on-screen prompts.
CAUTION! Handle handset cord carefully to avoid damage to connectors.
Access menu via dedicated MENU button. Navigation: 4-way navigation cluster with center SELECT button.
Front Panel: Handset, Speakerphone, Mute, Headset, Volume keys, Programmable keys.
Basic Settings: Language, Time/Date, Display contrast, Ring tones. Network: IP configuration, VLAN, QoS. Account: SIP settings, registration, codec selection. Features: Call forwarding, DND, speed dials. Security: Password, encrypted communication.
Network: LAN port to switch, PC port to computer. Headset: RJ9 connector. Optional: EHS adapter for wireless headset.
Tip: Use Cat5e or better Ethernet cables for optimal performance.
Supports advanced business telephony features.
WARNING! Do not use liquid cleaners on display or keypad.
Hearing Aid Compatible: Meets FCC requirements. Visual Alerts: Flashing LED for incoming calls. Adjustable Volume: Separate controls for handset, speaker, ringer. High-Contrast Display: Adjustable contrast settings.
Unplug before cleaning. Use slightly damp cloth for exterior; dry cloth for display.
CAUTION! Do not use abrasive cleaners or solvents. Keep away from liquids.
FCC Part 15: Class A digital device; complies with limits for business use. CE marked for European market. RCM for Australia/New Zealand. Copyright © Mitel Networks Corporation. For support, visit www.mitel.com or contact authorized Mitel partner.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No display | Power/connection | Check power source; verify PoE or AC adapter connection. |
| No dial tone | Network/registration | Verify network connection; check SIP registration status. |
| Poor audio quality | Network/configuration | Check QoS settings; verify codec configuration. |
| Keys not responding | Software/firmware | Reset phone; upgrade firmware if available. |
| Cannot make calls | Account configuration | Verify SIP credentials; check with system administrator. |
Reset: Press and hold # key during boot for factory reset.
Service: Contact authorized Mitel service provider; www.mitel.com/support