The Cisco CP-8851-K9 requires a Cisco Call Manager Server. If you plan on using this phone with a Hosted Cloud Provider, (e.g. Vonage, Ring Central, Nextiva, Zoom) than you will need the Cisco CP-8851-3PCC-K9.
The Cisco 8851 IP Phone delivers high-fidelity, reliable, secure, and scalable voice communication for small to large enterprise businesses. The Cisco 8851 combines an attractive new ergonomic design with wideband audio for crystal clear voice communications, encrypted voice communications to enhance security, and access to a comprehensive suite of unified communication features. The Cisco 8851 is ideal for knowledge workers, remote workers, managers, and executives across industries and businesses of all sizes.
Display: 5-inch, high-resolution (800 x 480 pixels) widescreen VGA backlit color display
Navigation Keys: Four-way navigation and select keys
Programmable Line/Feature Keys: 5 programmable keys that support either lines (such as directory numbers), or call features (such as speed dialing).
Programmable Softkeys: 4 buttons
Button Module Expansion: Yes, supports the Cisco CP-BEKEM= or the Cisco CP-8800-A-KEM= Expansion Modules for additional programmable line/feature keys.
Bluetooth: Supports Bluetooth 3.0 Enhanced Data Rate (EDR) Class 1 Technology for coverage of up to 66-feet
WiFi: Not Available
USB Port: A side USB port enhances the usability of call handling by enabling wired or wireless headsets, as well as provides up to 500-mA power output at 5V or 2.5W for smartphone charging.
Speakerphone: Includes high-quality, 2-way speakerphone
Audio: Wideband audio enhances clarity with the handset, speaker, or headset
Wall-Mountable: Yes, requires optional Cisco 8800 Series Wall Mount Kit (CP-8800-WMK=)
Ethernet Connectivity: Dual Gigabit Ethernet (10/100/1000) line interface (PC Pass Through & Network Connection)
Headset Port: Supports wired, USB and Bluetooth headsets
Message Waiting Indicator: Yes
Adjustable Tilt Display: No
Network Security: Secure boot, Device authentication, Configuration file authentication and encryption, Certificate Authority Proxy Function (CAPF), Signaling authentication and encryption using TLS, Media authentication and encryption using SRTP, HTTPS for client and server, Secure Shell (SSH) Protocol server, SSL-based VPN client
Global Support: Uses Icon keys and supports multiple languages
Supports 802.3af Power-over-ethernet (PoE)
Can also be powered via optional power adapter if PoE is not available on your network (power supply sold separately – see accessories above)
We provide FREE UPS Ground shipping on any online order over $99. For online
orders totaling less than $99, UPS Ground shipping is only $9.95. The offer is
valid in the continental United States.
The vast majority of our orders are shipped the same day as placed. If there is
any significant delay in your order leaving our warehouse, you will be contacted
promptly by our customer service department.
We offer UPS Ground, UPS 3 Day Select, UPS 2 Day Air, UPS Next Day Air Saver,
and UPS Next Day Air.
UPS Ground - 1-5 days depending on delivery distance (see Ground services map
UPS 3 Day Select – by 4:30 p.m. third business day to most US addresses
UPS 2 Day Air - by 4:30 p.m. second business day to most US addresses
UPS Next Day Air Saver - by 4:30 p.m. next business day to most US addresses
UPS Next Day Air - by 10:00 a.m. next business day to most US addresses