1. Introduction
This manual provides essential instructions for the setup, operation, and maintenance of your Cisco IP Business Phone 8861. Designed for enhanced productivity in business environments, this phone offers clear voice communications, reliable performance, and secure features.
The Cisco IP Business Phone 8861 features an ergonomic design, a 5-inch WVGA color display, and supports advanced communication functionalities.
2. Package Contents
Verify that your package contains the following items:
- Cisco IP Business Phone 8861 unit (Model: CP-8861-K9=)
- Handset
- Handset Cord
- Ethernet Cable
- Stand
Note: An AC power adapter is optional and sold separately. The phone primarily uses Power over Ethernet (PoE).
3. Setup and Installation
Follow these steps to set up your Cisco IP Business Phone 8861:
- Connect the Stand: Attach the phone stand to the base of the phone unit.
- Connect the Handset: Plug one end of the handset cord into the handset and the other end into the handset port on the phone.
- Network Connection (PoE): Connect an Ethernet cable from your network switch (which must support Power over Ethernet, PoE) to the network port on the back of the phone. The phone will power on automatically.
- Network Connection (with AC Adapter): If not using PoE, connect an Ethernet cable from your network switch to the network port on the back of the phone. Then, connect the optional AC power adapter (sold separately) to the power port on the phone and plug it into a power outlet.
- PC Connection (Optional): 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.
- USB Devices (Optional): Connect USB headsets or other compatible USB devices to the USB ports on the phone.
- System Integration: The Cisco IP Business Phone 8861 requires a Cisco Communications Manager system and a user license to function. It cannot be directly plugged into a standard home network for service. Contact your IT administrator for system configuration.

Figure 3.1: Front view of the Cisco IP Business Phone 8861, showing the display, keypad, and handset.

Figure 3.2: Cisco IP Business Phone 8861 displaying an active call on its 5-inch color screen.
4. Operating Instructions
This section outlines basic operation of your IP phone.
4.1. Display and Navigation
The phone features a 5-inch WVGA color display (800x480 pixels) for clear visibility of call information, menus, and features. Use the navigation cluster (circular button with directional arrows) to move through menus and select options.
4.2. Making and Receiving Calls
- To Make a Call: Lift the handset, press a line button, or press the Speaker button. Dial the number using the keypad.
- To Answer a Call: Lift the handset, press the flashing line button, or press the Speaker button.
- To End a Call: Replace the handset, or press the End Call softkey on the display.
4.3. Call Features
- Hold: Press the Hold button during an active call.
- Transfer: Press the Transfer button during an active call, dial the transfer recipient's number, and then press Transfer again.
- Conference: The phone supports 3-way conference calls. During an active call, press the Conference button, dial the number of the third party, and then press Conference again to join all parties.
- Mute: Press the Mute button to mute your microphone during a call.
- Voicemail: Press the Voicemail button to access your voicemail messages.
4.4. Multiline Operation
The Cisco IP Business Phone 8861 supports multi-line operation with up to 10 SIP registrations, allowing you to manage multiple calls or lines simultaneously.
4.5. WLAN Connectivity
The phone is WLAN enabled (802.11a/b/g/n/ac), allowing for wireless network connectivity in supported environments. Consult your IT administrator for configuration details.
5. Maintenance and Care
To ensure the longevity and optimal performance of your Cisco IP Business Phone 8861, follow these maintenance guidelines:
- Cleaning: Gently wipe the phone's surfaces, including the display and keypad, with a soft, lint-free cloth. For stubborn marks, slightly dampen the cloth with water. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the phone's finish and components.
- Environment: Keep the phone in a dry environment, away from direct sunlight, excessive heat, and moisture.
- Handset Cord: Periodically check the handset cord for any signs of wear or damage. Replace if necessary.
- Battery: The phone requires 1 A battery (likely for internal clock or specific accessory). If applicable, ensure proper battery installation and replacement as per specific instructions for that component.
6. Troubleshooting
If you encounter issues with your Cisco IP Business Phone 8861, refer to the following common troubleshooting tips:
- Phone Does Not Power On:
- Ensure the Ethernet cable is securely connected to a PoE-enabled network port.
- If using an AC adapter, verify it is properly connected to the phone and a working power outlet.
- Confirm that the network switch port is active and providing PoE.
- No Dial Tone or Cannot Make/Receive Calls:
- Verify the phone is properly connected to your corporate network.
- Confirm that your phone is registered with the Cisco Communications Manager system. This phone requires a Cisco Call Manager system to function.
- Contact your IT administrator to check your line status and system configuration.
- Poor Audio Quality:
- Check the handset cord for damage.
- Ensure the network connection is stable.
- If using a headset, ensure it is properly connected and functioning.
- Missed Call Notification Icon:
An orange icon indicating a missed call will appear on the display. This icon typically requires manual clearing after reviewing missed calls. This is a standard feature and cannot be disabled through user settings.
For issues not resolved by these steps, please contact your IT support or Cisco technical support.
7. Specifications
Detailed technical specifications for the Cisco IP Business Phone 8861 (CP-8861-K9=):
| Feature | Description |
|---|---|
| Model Number | CP-8861-K9= |
| Display | 5-inch Widescreen VGA Color Display (800x480 pixels) |
| Network Interface | Built-in Gigabit Ethernet switch (10/100/1000) |
| WLAN Support | 802.11a/b/g/n/ac enabled |
| USB Ports | 2 USB Ports |
| SIP Registrations | Up to 10 |
| Power | Class 4 Power over Ethernet (PoE), Optional AC Power Source (sold separately) |
| Conference Call | 3-way capability |
| Multiline Operation | Yes |
| Dialer Type | Single Keypad |
| Answering System Type | Digital (system integrated) |
| Dimensions (L x W x H) | 13.4 x 10.6 x 2.9 inches (34.04 x 26.92 x 7.37 cm) |
| Item Weight | 2.62 pounds (1190 Grams) |
| Color | Black |
| Wall-mountable | Yes (optional wall mount sold separately) |

Figure 7.1: Feature comparison table for Cisco IP Phone 8800 Series, highlighting features of the 8861 model.
8. Warranty Information
The Cisco IP Business Phone 8861 (CP-8861-K9=) comes with a 1-Year Limited Hardware Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For detailed warranty terms and conditions, please refer to the official Cisco warranty documentation or contact Cisco support.
9. Support
For technical assistance, product inquiries, or warranty claims, please contact your authorized Cisco reseller or visit the official Cisco support website.
- Cisco Support Website: www.cisco.com/go/support (Example link, actual link not provided in JSON)
- Contact your IT Administrator: For enterprise deployments, your internal IT department is the primary point of contact for support and configuration.





