1. Sarrera eta 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. Ezaugarri nagusiak
- Pantaila: Two-line by 20-character white, backlit, graphics display with contrast control and auto-dimming.
- Tekla programagarriak: Twelve multi-function keys with dual-color LED indicators for speed dialing, line appearances, and feature access.
- Funtzio-teklak: Dedicated keys for Hold, Menu, Message, Speaker, Mute, Transfer/Conference, Redial, and Cancel.
- Bozgorailua: Full duplex handsfree speakerphone operation.
- Pertsonalizazioa: Browser-based desktop user tool programming for easy access to telephone system features.
3. Konfigurazio gida
3.1 Paketearen edukia
Hasi aurretik, ziurtatu osagai guztiak daudela:
- Mitel 5312 IP Phone unit
- Telefonoa eta kable kiribildua
- Ethernet kablea
- Power adapter (if not using Power over Ethernet - PoE)

Figure 2: Mitel 5312 IP Phone and its primary accessories.
3.2 Telefonoa konektatzea
- Konektatu telefonoa: Konektatu kable kiribilduaren mutur bat telefonoan eta beste muturra telefonoaren oinarrian dagoen telefonoaren atakan.
- Konektatu sarera:
- 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: Telefonoaren bidez ordenagailu bat konektatu nahi baduzu, konektatu Ethernet kable bat ordenagailutik telefonoaren PC atakara.
- Hasierako abiaraztea: 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. Funtzionamendu-argibideak
4.1 Oinarrizko dei-funtzioak
- Dei bat egitea: Lift the handset, press a line key, or press the Speaker button. Dial the number.
- Dei bati erantzutea: Lift the handset, press the flashing line key, or press the Speaker button.
- Dei bat amaitzea: Replace the handset, or press the Speaker button if using speakerphone.
- Eutsi: Dei batean zehar, sakatu Eutsi key. To retrieve, press the flashing line key.
- Ezkutatu: Sakatu Isildu key to mute your microphone during a call. Press again to unmute.
- Bozgorailua: Sakatu Hizlaria key to activate or deactivate the speakerphone.
4.2 Ezaugarri aurreratuak
- transferentzia: Dei batean zehar, sakatu 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).
- Hitzaldia: Dei batean zehar, sakatu Transfer/Conference key. Dial the number of the third party. Once connected, press Transfer/Conference berriro ere alderdi guztiekin bat egiteko.
- Berriro markatzea: Sakatu Berriro markatzea key to call the last dialed number.
- Message Access: Sakatu Mezua key to access your voicemail.
- Tekla programagarriak: 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. Mantentzea
Proper care and maintenance will extend the life of your Mitel 5312 IP Phone.
- Garbiketa: Erabili leuna, apur bat damp cloth to clean the phone's surface. Avoid abrasive cleaners, solvents, or strong chemicals. Do not spray liquids directly onto the phone.
- Ingurumena: Keep the phone in a dry environment, away from direct sunlight, excessive heat, or extreme cold. Ensure proper ventilation.
- Manipulazioa: Handle the phone and its components with care. Avoid dropping the handset or pulling excessively on cords.
6. Arazoak
This section addresses common issues you might encounter with your Mitel 5312 IP Phone.
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| 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. |
| Pantaila hutsik edo irakurgaitza da | No power, display settings, hardware fault. | Check power connection. Adjust display contrast (if available). If the issue persists, contact support. |
| Ezin dut deitzailea entzun / Deitzaileak ezin nau entzun | 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. Zehaztapenak
Detailed technical specifications for the Mitel 5312 IP Phone (Model: 50005847).
| Ezaugarri | Xehetasuna |
|---|---|
| Modelo zenbakia | 50005847 |
| Marka | Mitel |
| Elementuaren pisua | 3 kilo |
| Kolorea | Beltza, Zilarrezkoa |
| Telefono Mota | corded |
| Materiala | Plastikoa |
| Energia iturria | Kable elektrikoa |
| Markagailu mota | Teklatu bakarra |
| Erantzungailu mota | Digitala |
| Gailu bateragarriak | Mitel's IP communications platforms, VoIP services, PSTN networks |
| Konferentzia-deien gaitasuna | Oinarrizkoa |
| Eskuragarri dagoen lehen data | 4ko abuztuaren 2009a |

Figure 3: Product label with identification details.
Extracted details from label:
Serie zenbakia: 1TKFW14210JZ, FSABV9236
MAC Helbidea: 08:00:0F:8A:1B:94, 08-00-0F-3B-E5-DA
Errepasoa: A.26, A.2
8. Laguntza eta Bermea
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.





