Introduction
The Cisco SPA112 2 Port Phone Adapter provides high-quality, feature-rich Voice over IP (VoIP) service through a broadband Internet connection. This adapter allows you to connect two standard analog telephones or fax machines to a VoIP service provider, enabling clear voice calls and reliable fax connections while simultaneously using your Internet connection. It supports various Internet VoIP provider features such as caller ID, call waiting, voicemail, and call forwarding.
Informations importantes sur la sécurité
Veuillez lire et comprendre toutes les consignes de sécurité avant d'utiliser ce produit. Le non-respect de ces consignes peut entraîner un choc électrique, un incendie ou d'autres dangers.
- N'exposez pas l'appareil à l'eau ou à l'humidité.
- N’ouvrez pas l’appareil et n’essayez pas de le réparer. Confiez toute réparation à un personnel qualifié.
- Utilisez uniquement l'adaptateur secteur fourni avec l'appareil.
- Assurez une ventilation adéquate autour de l’appareil pour éviter toute surchauffe.
- Gardez l'appareil à l'écart des sources de chaleur et de la lumière directe du soleil.
Contenu du colis
Vérifiez que votre colis contient les éléments suivants :
- Cisco SPA112 2 Port Phone Adapter
- Adaptateur secteur
- Câble Ethernet
- Guide de démarrage rapide (non inclus dans ce manuel numérique)
Produit terminéview
The Cisco SPA112 is a compact device designed to connect analog phones to a VoIP network. It features two phone ports and one Internet port.
Panneau avant

Figure 1 : Face avant view of the Cisco SPA112, showing the Cisco logo and indicator lights for phone lines, internet, and power.
The front panel includes indicator lights that provide status information:
- Phone 1/2 LEDs: Indicate the status of the phone lines. Lit when a phone is off-hook or in use.
- Voyant Internet : Indicates the status of the Internet connection. Lit when connected and active.
- Voyant d'alimentation : Indicates the power status of the device. Lit when the device is powered on.
Panneau arrière

Figure 2 : Arrière view of the Cisco SPA112, showing the Reset button, Phone 1 and Phone 2 ports, Internet port, and DC 5V Power input.
The rear panel contains all the connection ports:
- Bouton de réinitialisation: Permet de réinitialiser l'appareil à ses paramètres d'usine.
- PHONE 1/2 Ports (RJ-11): Connect analog telephones or fax machines.
- INTERNET Port (RJ-45): Connects to your router or broadband modem.
- DC 5V POWER Input: Se connecte à l'adaptateur secteur fourni.
Configuration et installation
Follow these steps to set up your Cisco SPA112 adapter.
Step 1: Physical Connections
- Connect the Internet Cable: Connectez une extrémité du câble Ethernet au INTERNET port on the SPA112 and the other end to an available LAN port on your router or broadband modem.
- Connect Telephones: Connect your analog telephones or fax machines to the TÉLÉPHONE 1 et/ou TÉLÉPHONE 2 ports using standard RJ-11 phone cables.
- Connecter l'alimentation : Connectez l'adaptateur secteur au Alimentation cc 5V input on the SPA112, then plug the adapter into an electrical outlet. The Power LED on the front panel should illuminate.

Figure 3: Diagram showing the Cisco SPA112 connected to a router, power outlet, and an analog phone.
Step 2: Initial Configuration (Accessing the Web interface)
To configure the SPA112, you will need to access its web-based administration interface. The device typically obtains an IP address automatically from your router via DHCP.
- Find the Device's IP Address:
- Connect an analog phone to the TÉLÉPHONE 1 port.
- Dial **** (four asterisks).
- When prompted, dial 110# to hear the device's IP address. Note this IP address.
- Accéder au Web Interface:
- Ouvrir un web browser on a computer connected to the same network as the SPA112.
- Enter the IP address you noted in the browser's address bar (e.g., http://192.168.1.100) et appuyez sur Entrée.
- You will be prompted for a username and password. The default credentials are typically:
- Nom d'utilisateur: administrateur
- Mot de passe: administrateur
- Configure VoIP Service:
Once logged in, navigate to the "Voice" or "Line" settings to enter the details provided by your VoIP service provider (e.g., SIP proxy, user ID, password). Refer to your VoIP provider's documentation for specific settings.
Mode d'emploi
After successful setup and configuration, your Cisco SPA112 is ready for use.
Passer et recevoir des appels
- Faire un appel: Pick up the connected analog phone. You should hear a dial tone. Dial the desired phone number.
- Pour recevoir un appel : When your phone rings, pick up the handset to answer.
Using Fax Machines
The SPA112 supports fax machines connected to its phone ports. For optimal fax performance, ensure your VoIP service provider supports T.38 faxing and that it is enabled in the adapter's configuration if necessary.
VoIP Features
The SPA112 supports various VoIP features depending on your service provider, including:
- Identification de l'appelant
- Appel en attente
- Messagerie vocale
- Renvoi d'appel
- Bague distinctive
- Conférence à trois
Consult your VoIP service provider for details on how to activate and use these features.
Entretien
The Cisco SPA112 is designed for reliable operation with minimal maintenance.
- Nettoyage: Utilisez un chiffon doux et sec pour nettoyer l'appareil. N'utilisez pas de nettoyants liquides ni en aérosol.
- Mises à jour du micrologiciel : Consultez régulièrement le support Cisco website for firmware updates. Firmware updates can improve performance, add features, or fix bugs. Follow the instructions provided by Cisco for updating firmware.
- Redémarrage de l'appareil : If you experience issues, try restarting the device by unplugging the power adapter, waiting 10 seconds, and then plugging it back in.
Dépannage
This section addresses common issues you might encounter with your SPA112.
Pas de tonalité
- Vérifiez l'alimentation : Ensure the power adapter is securely connected and the Power LED is lit.
- Vérifier la connexion téléphonique : Verify that the analog phone is correctly plugged into a PHONE port.
- Vérifiez la connexion Internet : Ensure the Internet LED is lit, indicating an active network connection.
- VoIP Service Status: Confirm your VoIP service is active and configured correctly in the adapter's web interface.
Impossible de passer ou de recevoir des appels
- Verify VoIP Configuration: Double-check all SIP settings (proxy, user ID, password) in the web interface against your VoIP provider's information.
- Connectivité réseau : Ensure your router and internet connection are working correctly. Try accessing other websites from a connected computer.
- Firewall Issues: Your router's firewall might be blocking VoIP traffic. Consult your router's manual or IT administrator to ensure necessary ports are open (typically UDP ports 5060 for SIP and 10000-20000 for RTP).
- Redémarrer les appareils : Try rebooting your modem, router, and the SPA112 in sequence.
Poor Call Quality (Echo, Jitter, Dropped Calls)
- Internet Bandwidth: Ensure you have sufficient internet bandwidth, especially during peak usage. Other network activities (streaming, large downloads) can impact call quality.
- Congestion du réseau : If possible, connect the SPA112 directly to your router via Ethernet, avoiding Wi-Fi extenders or powerline adapters.
- Paramètres QoS : If your router supports Quality of Service (QoS), configure it to prioritize VoIP traffic.
- VoIP Provider: Contact your VoIP service provider to check for any service-side issues or recommended settings.
Caractéristiques
| Marque | Cisco |
| Modèle | SPA112 |
| Ports | 2 x RJ-11 FXS (Phone), 1 x RJ-45 Ethernet (Internet) |
| Norme de réseau | 10/100Base-TX |
| Technologie Ethernet | Ethernet rapide |
| Source d'énergie | Adapter (DC 5V) |
| Dimensions de l'article (L x l x H) | 3.94 x 3.94 x 1.18 pouces (10 x 10 x 3 cm) |
| Poids de l'article | 153 gramme |
| Appareils compatibles | VoIP services, computer networks, PSTN networks, caller ID services, routers, gateways, fax machines |
| Certification d'essais externes | FCC, CE, ICES, A-Tick, RoHS, UL |
| Identification de l'appelant | Oui |
| Opération multiligne | Fonctionnement multi-lignes |
Informations sur la garantie
The Cisco SPA112 2 Port Phone Adapter comes with a 30-day warranty from the seller and a manufacturer's warranty. For specific terms and conditions, please refer to the documentation provided with your purchase or visit the official Cisco support website.
Assistance clientèle
For further assistance, technical support, or to download the latest firmware and documentation, please visit the official Cisco support website. You may also contact your VoIP service provider for configuration-specific support.
Assistance Cisco Website: www.cisco.com/support





