1. Introduction and Overview
The Mitel 5312 IP Phone is a versatile and user-friendly communication device designed for modern office environments. It features a full-duplex handsfree speakerphone, a multi-line backlit display, and programmable feature keys, providing intuitive access to advanced call handling and converged applications supported by Mitel's IP communication platforms.
This manual provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your Mitel 5312 IP Phone, ensuring optimal performance and user experience.
Figure 1: Mitel 5312 IP Phone with included accessories.
2. Key Features
- Display: Two-line by 20-character white, backlit, graphics display with contrast control and auto-dimming.
- Programmable Keys: Twelve multi-function keys with dual-color LED indicators for speed dialing, line appearances, and feature access.
- Function Keys: Dedicated keys for Hold, Menu, Message, Speaker, Mute, Transfer/Conference, Redial, and Cancel.
- Speakerphone: Full duplex handsfree speakerphone operation.
- Customization: Browser-based desktop user tool programming for easy access to telephone system features.
3. Setup Guide
3.1 Package Contents
Before you begin, ensure all components are present:
- Mitel 5312 IP Phone unit
- Handset and coiled cord
- Ethernet cable
- Power adapter (if not using Power over Ethernet - PoE)
Figure 2: Mitel 5312 IP Phone and its primary accessories.
3.2 Connecting the Phone
- Connect the Handset: Plug one end of the coiled cord into the handset and the other end into the handset port on the phone base.
- Connect to Network:
- If using Power over Ethernet (PoE), connect one end of the Ethernet cable to the LAN port on the phone and the other end to a PoE-enabled network switch or router.
- If not using PoE, connect one end of the Ethernet cable to the LAN port on the phone and the other end to your network switch/router. Then, connect the power adapter to the phone's power port and plug it into a power outlet.
- Optional PC Connection: If you wish to connect a computer through the phone, plug an Ethernet cable from your computer into the PC port on the phone.
- Initial Boot-up: The phone will power on and begin its boot-up sequence. This may take a few moments as it obtains network configuration and registers with your IP communications platform.
4. Operating Instructions
4.1 Basic Call Functions
- Making a Call: Lift the handset, press a line key, or press the Speaker button. Dial the number.
- Answering a Call: Lift the handset, press the flashing line key, or press the Speaker button.
- Ending a Call: Replace the handset, or press the Speaker button if using speakerphone.
- Hold: During a call, press the Hold key. To retrieve, press the flashing line key.
- Mute: Press the Mute key to mute your microphone during a call. Press again to unmute.
- Speakerphone: Press the Speaker key to activate or deactivate the speakerphone.
4.2 Advanced Features
- Transfer: During a call, press the Transfer/Conference key. Dial the transfer destination, then press Transfer/Conference again to complete (blind transfer) or wait for an answer and announce the call (supervised transfer).
- Conference: During a call, press the Transfer/Conference key. Dial the number of the third party. Once connected, press Transfer/Conference again to join all parties.
- Redial: Press the Redial key to call the last dialed number.
- Message Access: Press the Message key to access your voicemail.
- Programmable Keys: The twelve programmable keys can be configured for speed dialing, line appearances, or quick access to system features. Consult your system administrator for specific programming details.
5. Maintenance
Proper care and maintenance will extend the life of your Mitel 5312 IP Phone.
- Cleaning: Use a soft, slightly damp cloth to clean the phone's surface. Avoid abrasive cleaners, solvents, or strong chemicals. Do not spray liquids directly onto the phone.
- Environment: Keep the phone in a dry environment, away from direct sunlight, excessive heat, or extreme cold. Ensure proper ventilation.
- Handling: Handle the phone and its components with care. Avoid dropping the handset or pulling excessively on cords.
6. Troubleshooting
This section addresses common issues you might encounter with your Mitel 5312 IP Phone.
| Problem | Possible Cause | Solution |
|---|---|---|
| No dial tone / Phone not registering | Network cable disconnected, no power (if not PoE), incorrect network configuration, server issue. | Check Ethernet cable connection. Ensure power adapter is plugged in (if applicable). Verify network settings with your IT administrator. Restart the phone by unplugging and replugging the power/Ethernet cable. |
| Display is blank or unreadable | No power, display settings, hardware fault. | Check power connection. Adjust display contrast (if available). If the issue persists, contact support. |
| Cannot hear caller / Caller cannot hear me | Volume too low, Mute activated, faulty handset/speakerphone, network quality. | Adjust volume. Check if Mute is active. Try speakerphone or handset to isolate the issue. Check network connection quality. |
If you continue to experience issues, please contact your IT support or Mitel customer service. Be prepared to provide the model number and serial number of your device.
7. Specifications
Detailed technical specifications for the Mitel 5312 IP Phone (Model: 50005847).
| Feature | Detail |
|---|---|
| Model Number | 50005847 |
| Brand | Mitel |
| Item Weight | 3 pounds |
| Color | Black, Silver |
| Telephone Type | Corded |
| Material | Plastic |
| Power Source | Corded Electric |
| Dialer Type | Single Keypad |
| Answering System Type | Digital |
| Compatible Devices | Mitel's IP communications platforms, VoIP services, PSTN networks |
| Conference Call Capability | Basic |
| First Available Date | August 4, 2009 |
Figure 3: Product label with identification details.
Extracted details from label:
Serial Number: 1TKFW14210JZ, FSABV9236
MAC Address: 08:00:0F:8A:1B:94, 08-00-0F-3B-E5-DA
Revision: A.26, A.2
8. Support and Warranty
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Mitel customer support or your authorized Mitel reseller.
When contacting support, please have your product model number (50005847) and serial number ready. The serial number can be found on the label at the bottom of your phone unit (refer to Figure 3).
Information regarding protection plans and return policies may be available from your point of purchase.
