Cisco 8851 IP Phone (CP-8851-K9=)

Cisco 8851 IP Phone (CP-8851-K9=)

The Cisco 8851 IP Phone (CP-8851-K9=) is a premium business VoIP phone designed for knowledge workers, managers, executives, and remote professionals who require advanced communications capabilities. Featuring Bluetooth connectivity, USB support, Gigabit Ethernet, wideband audio, and Cisco Intelligent Proximity technology, the Cisco 8851 delivers a powerful and user-focused communications experience.

As part of the Cisco 8800 Series, the 8851 combines enterprise-grade security, exceptional voice quality, and mobile device integration to improve productivity across modern business environments.

Features

• 5-inch widescreen backlit display
• 800 x 480 pixel resolution
• Grayscale LCD screen
• Support for up to 5 directory number (DN) lines
• 5 programmable line keys
• 4 soft keys
• Wideband audio support
• Full-duplex speakerphone
• XML application support
• SSL-based VPN client
• Cisco Intelligent Proximity integration
• Mobile device connectivity
• Bluetooth 3.0 EDR Class 1 support
• Wireless headset support
• USB port for accessories
• USB charging for smartphones and tablets
• Gigabit Ethernet connectivity
• Integrated headset port
• Dual-position foot stand
• Wall-mountable design
• Enterprise-grade security
• Cisco EnergyWise support
• Professionally tested
• Warranty included

Specifications

• Manufacturer: Cisco
• Model: 8851
• Part Number: CP-8851-K9=
• Product Type: IP Phone
• Display Size: 5 Inches
• Display Resolution: 800 x 480 Pixels
• Display Type: Backlit Grayscale LCD
• Supported Lines: Up to 5
• Programmable Line Keys: 5
• Soft Keys: 4
• Audio:
  • Wideband Audio
  • Full-Duplex Speakerphone
• Bluetooth:
  • Bluetooth 3.0 EDR Class 1
  • Up to 66 ft (20 m) Range
• USB:
  • Single USB Port
  • Accessory Support
  • Mobile Device Charging
• XML Support: Yes
• VPN Support:
  • SSL-Based VPN Client
• Ethernet:
  • Dual Gigabit Ethernet Ports
  • Integrated 2-Port Gigabit Switch
• Headset Port: Yes
• Mounting Options:
  • Desk Mount
  • Wall Mount
• Power Options:
  • IEEE 802.3af PoE
  • Cisco Power Cube 4 (Sold Separately)
• Energy Management:
  • Cisco EnergyWise Support

Compatibility

Compatible with:

• Cisco Unified Communications Manager (CUCM) 8.5.1 and Later
• Cisco Unified Communications Manager (CUCM) 8.6.2
• Cisco Unified Communications Manager (CUCM) 9.1.2
• Cisco Unified Communications Manager (CUCM) 10.0 and Later
• Cisco Unified Communications Manager Express (CME) 10.0 and Later
• Cisco Business Edition 6000 (BE6000)
• Cisco Hosted Collaboration Solution (HCS)

Licensing Requirements

• Requires a Cisco Enhanced User Connect License (UCL) when connecting to Cisco Unified Communications Manager (CUCM)

Why Choose the Cisco 8851?

The Cisco 8851 is designed for users who need advanced communications tools and seamless integration between desktop and mobile devices. Bluetooth connectivity, USB accessory support, and Cisco Intelligent Proximity technology help users remain productive while simplifying call handling across multiple devices.

Combined with Gigabit networking, wideband audio, and enterprise-class security, the Cisco 8851 is an excellent choice for organizations seeking a feature-rich business communications solution.

Professionally Tested

Each Cisco 8851 IP Phone (CP-8851-K9=) is professionally tested to help ensure reliable performance and compatibility with supported Cisco communications platforms.

Package Includes

• Cisco 8851 IP Phone
• 1-Year Warranty

Related Products

Browse our selection of Cisco 8800 Series IP phones, video phones, expansion modules, replacement handsets, power supplies, Bluetooth headsets, and business communications equipment.

Documentation

Need setup and operating instructions for the Cisco 8851 IP Phone?

Download the Cisco 8800 Series User Guide for detailed information on installation, configuration, administration, and operation.

Download Cisco 8851 Datasheet (PDF)