1. Introdución
This user manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of the Cisco IP Phone 8811. Designed for business-class collaboration, this VoIP phone delivers high-fidelity, reliable, secure, and scalable voice communications. Please read this manual thoroughly to ensure proper use and to maximize the functionality of your device.
2. Produto rematadoview
The Cisco IP Phone 8811 is a cost-effective, business-class collaboration endpoint. It features an attractive ergonomic design and wideband audio for clear voice communications. The device supports SIP, RTCP, RTP, SRTP, and SDP protocols, offering encrypted voice communications for enhanced security. It integrates with Cisco communication servers to provide a comprehensive suite of unified communications features.

Image of the Cisco IP Phone 8811, a charcoal-colored VoIP phone with a display screen, keypad, and various function buttons. The phone features a handset on the left, a large display on the right, and a central navigation cluster.
3. Configuración
3.1 Contido do paquete
Antes de comezar, asegúrate de que estean presentes todos os compoñentes:
- Cisco IP Phone 8811 unit
- Auricular e cable en espiral
- Ethernet cable (for network connection)
- Optional: Power adapter (if Power over Ethernet (PoE) is not used)
- Documentación (este manual)
3.2 Conexión do teléfono
- Conecta o teléfono: Conecte un extremo do cable en espiral ao auricular e o outro extremo ao porto do auricular da base do teléfono.
- Conectar á rede (PoE): If using Power over Ethernet, connect an Ethernet cable from your network switch or router to the "SW" (Switch) port on the back of the phone. The phone will power on automatically.
- Connect to Network (External Power): If PoE is not available, connect an Ethernet cable from your network switch or router to the "SW" port. Then, connect the optional power adapter to the phone's power port and plug it into a power outlet.
- Conectar ao PC (opcional): If you wish to connect a computer through the phone, connect an Ethernet cable from your computer to the "PC" port on the back of the phone.
- Arranque inicial: Allow the phone to power on and connect to the network. This process may take a few minutes as the phone obtains an IP address and registers with your call control system.
3.3 Opcións de montaxe
The Cisco IP Phone 8811 is designed for desktop use with its integrated stand. It is also wall-mountable using an optional wall-mount kit (sold separately).
4. Instrucións de funcionamento
4.1 Funcións de chamada básicas
- Facendo unha chamada: Lift the handset, press the Speaker button, or press a line button. Dial the number and press the Dial softkey or wait for automatic dialing.
- Respondendo a unha chamada: Lift the handset, press the Speaker button, or press the Answer softkey.
- Finalizando unha chamada: Replace the handset, press the Speaker button again, or press the End Call softkey.
- Poñer unha chamada en espera: During an active call, press the Hold softkey. To resume, press the Resume softkey or the flashing line button.
- Transferir unha chamada: During an active call, press the Transfer softkey. Dial the transfer recipient's number, and once connected, press Transfer again to complete.
4.2 Speakerphone and Headset
Preme o Orador button to activate or deactivate the speakerphone. The phone also supports a headset connection via the dedicated headset port.
4.3 Conferencias telefónicas
The Cisco IP Phone 8811 supports 3-way conference calls. During an active call, press the Conferencia softkey, dial the number of the third party, and once connected, press Conferencia de novo para unirse a todos os partidos.
4.4 Correo de voz
Preme o Mensaxes button to access your voicemail system. Follow the voice prompts to retrieve messages.
4.5 Axuste do volume
Usa o Volume button (rocker switch) to adjust the volume of the handset, speakerphone, or ringer.
5. Mantemento
5.1 Limpeza do teléfono
To clean the phone, use a soft, lint-free cloth. If necessary, slightly dampen the cloth with water. Avoid using abrasive cleaners, solvents, or aerosol sprays, as these can damage the phone's surface and internal components.
5.2 Consideracións ambientais
Keep the phone away from direct sunlight, heat sources, and excessive moisture. Ensure proper ventilation around the device to prevent overheating.
6 Solución de problemas
6.1 Problemas comúns e solucións
| Problema | Causa posible | Solución |
|---|---|---|
| O teléfono non se acende. | Sen alimentación de Ethernet (PoE) ou do adaptador de corrente. | Verify Ethernet cable is securely connected to a PoE-enabled port, or ensure power adapter is correctly plugged in. |
| Sen ton de marcación. | Phone not registered with call control system; network issue. | Check network cable connection. Allow time for registration. If issue persists, contact your IT administrator. |
| Non se oe a persoa que chama / A persoa que chama non me oe. | Volume too low; faulty handset/headset; network quality issue. | Adjust volume. Test with speakerphone. Check handset/headset connection. |
| A pantalla está en branco ou conxelada. | Software issue; power interruption. | Desconecta o cable Ethernet (e o adaptador de corrente se o usaches) durante 10 segundos e, a seguir, volve conectalo para reiniciar o teléfono. |
For issues not listed here or if solutions do not resolve the problem, please contact your system administrator or technical support.
7. Especificacións
| Marca | OEM |
| Número de modelo | CP-8811-K9= |
| Cor | Carbón vexetal |
| Peso do elemento | 1 libras (aprox. 0.45 kg) |
| Dimensións do paquete | 13.31 x 10.67 x 2.91 polgadas (aprox. 33.8 x 27.1 x 7.4 cm) |
| Tipo de teléfono | Teléfono VoIP con cable |
| Fonte de enerxía | Corded Electric (PoE or optional power adapter) |
| Tipo de marcador | Integrated VoIP Dialer |
| Tipo de contestador automático | Dixital |
| Dispositivos compatibles | Devices supporting SIP, PoE, and Gigabit Ethernet |
| Capacidade de gravación | 18 minutes (for voicemail, if supported by system) |
| Capacidade de chamadas de conferencia | 3 vías |
8. Garantía e soporte
Warranty information for the Cisco IP Phone 8811 (Model CP-8811-K9=) is typically provided by the original manufacturer, OEM, or the reseller from whom the product was purchased. Please refer to the documentation included with your purchase or contact your vendor for specific warranty terms and conditions.
For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact your IT department or the authorized reseller/manufacturer support channels.





