1. Introduction et plusview
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. Principales caractéristiques
- Afficher: Two-line by 20-character white, backlit, graphics display with contrast control and auto-dimming.
- Touches programmables: Twelve multi-function keys with dual-color LED indicators for speed dialing, line appearances, and feature access.
- Touches de fonction : Dedicated keys for Hold, Menu, Message, Speaker, Mute, Transfer/Conference, Redial, and Cancel.
- Haut-parleur: Full duplex handsfree speakerphone operation.
- Personnalisation : Browser-based desktop user tool programming for easy access to telephone system features.
3. Guide de configuration
3.1 Contenu du paquet
Avant de commencer, assurez-vous que tous les composants sont présents :
- Téléphone IP Mitel 5312
- Combiné et cordon spiralé
- Câble Ethernet
- Adaptateur secteur (si vous n'utilisez pas l'alimentation par Ethernet - PoE)

Figure 2: Mitel 5312 IP Phone and its primary accessories.
3.2 Connexion du téléphone
- Connectez le combiné : Branchez une extrémité du cordon spiralé au combiné et l'autre extrémité au port du combiné sur la base du téléphone.
- Se connecter au réseau :
- 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.
- Connexion PC optionnelle : Si vous souhaitez connecter un ordinateur via le téléphone, branchez un câble Ethernet de votre ordinateur au port PC du téléphone.
- Démarrage initial : 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. Mode d'emploi
4.1 Fonctions d'appel de base
- Passer un appel : Lift the handset, press a line key, or press the Speaker button. Dial the number.
- Répondre à un appel: Lift the handset, press the flashing line key, or press the Speaker button.
- Terminer un appel : Replace the handset, or press the Speaker button if using speakerphone.
- Prise: Pendant un appel, appuyez sur la Prise key. To retrieve, press the flashing line key.
- Muet: Appuyez sur le Muet Touche permettant de couper le micro pendant un appel. Appuyez de nouveau pour le réactiver.
- Haut-parleur: Appuyez sur le Conférencier key to activate or deactivate the speakerphone.
4.2 fonctionnalités avancées
- Transfert: Pendant un appel, appuyez sur la 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).
- Conférence: Pendant un appel, appuyez sur la Transfer/Conference key. Dial the number of the third party. Once connected, press Transfer/Conference à nouveau pour réunir toutes les parties.
- Rappel: Appuyez sur le Recomposition Touche permettant d'appeler le dernier numéro composé.
- Message Access: Appuyez sur le Message clé pour accéder à votre messagerie vocale.
- Touches programmables: 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. Entretien
Proper care and maintenance will extend the life of your Mitel 5312 IP Phone.
- Nettoyage: Utilisez un chiffon doux et légèrement sec.amp cloth to clean the phone's surface. Avoid abrasive cleaners, solvents, or strong chemicals. Do not spray liquids directly onto the phone.
- Environnement: Keep the phone in a dry environment, away from direct sunlight, excessive heat, or extreme cold. Ensure proper ventilation.
- Manutention: Handle the phone and its components with care. Avoid dropping the handset or pulling excessively on cords.
6. Dépannage
Cette section aborde les problèmes courants que vous pourriez rencontrer avec votre téléphone IP Mitel 5312.
| Problème | Cause possible | 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. |
| L'écran est vide ou illisible. | No power, display settings, hardware fault. | Check power connection. Adjust display contrast (if available). If the issue persists, contact support. |
| Je n'entends pas mon interlocuteur. | 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. Spécifications
Detailed technical specifications for the Mitel 5312 IP Phone (Model: 50005847).
| Fonctionnalité | Détail |
|---|---|
| Numéro de modèle | 50005847 |
| Marque | Mitel |
| Poids de l'article | 3 livres |
| Couleur | Noir, Argent |
| Type de téléphone | Cordonné |
| Matériel | Plastique |
| Source d'énergie | Électrique avec fil |
| Type de composeur | Clavier unique |
| Type de répondeur | Numérique |
| Appareils compatibles | Mitel's IP communications platforms, VoIP services, PSTN networks |
| Capacité de conférence téléphonique | Basique |
| Première date disponible | 4er août 2009 |

Figure 3: Product label with identification details.
Extracted details from label:
Numéro de série: 1TKFW14210JZ, FSABV9236
Adresse MAC : 08:00:0F:8A:1B:94, 08-00-0F-3B-E5-DA
Révision: A.26, A.2
8. Assistance et garantie
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.





