CP-8851-W-K9

The phone offers an easy-to-use interface and provides a traditional telephony-like user experience.

The 800 × 480, 24-bit color, 5-in. WVGA display provides scrollable access to calling features and text-based XML applications.

The handset is a standard wideband-capable audio handset (connects through an RJ-9 port).
The standard coiled cord has a custom end for concealed cable routing beneath the phone (cord length is approximately 21 in. [55 cm] coiled and up to 72 in. (183 cm) extended).
The handset is hearing aid-compatible (HAC) and meets Federal Communications Commission (FCC) loudness requirements for the Americans with Disabilities Act (ADA). You can achieve Section 508 loudness requirements by using industry-standard inline handset amplifiers such as Walker Equipment W-10 or CE-100 amplifiers. The dial pad is also ADA-compliant.

A full-duplex speakerphone gives you flexibility in placing and receiving calls with hands free. For added security, the audible dual tone multifrequency (DTMF) tones are masked when the speakerphone mode is used.

The analog headset jack is a standard wideband-capable RJ-9 audio port.

You can use an auxiliary port to support electronic hookswitch control with a third-party headset connected to it.

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.

An internal 2-port Cisco Ethernet switch allows for a direct connection to a 10/100/1000BASE-T Ethernet network (IEEE 802.3i/802.3u/802.3ab) through a RJ-45 interface with single LAN connectivity for both the phone and a co-located PC.
The system administrator can designate separate VLANs (IEEE 802.1Q) for the PC and phone, providing improved security and reliability of voice and data traffic.

Bluetooth 3.0 Enhanced Data Rate (EDR) Class 1 technology (up to 66-ft [20m] range) is supported.
Hands-Free Profile (HFP) is supported for untethered headset connections and voice communications.
Phone Book Access Profile (PBAP) is supported for phone book object exchange between devices.

The phone has the following keys:
Line keys
Soft keys
Back and release keys
Four-way navigation and select keys
Hold/Resume, Transfer, and Conference keys
Messaging, Application, and Directory keys
Standard keypad
Volume-control toggle key
Speakerphone, headset, and mute keys

The phone supports backlit indicators for the audio path keys (handset, headset, and speakerphone), select key, line keys, and message waiting.

The phone includes a black bezel; an optional silver bezel is also orderable separately.

The display is easy-to-view and the buttons and keys are easy-to-use. The two-position foot stand supports viewing angles of 35 and 50 degrees; you can remove the foot stand for wall mounting, with mounting holes located on the base of the phone.

You can install the phone on a wall using an optional wall-mount kit.

The phone supports up to two KEMs to expand from 5 or 10 line buttons to 61 or 66 line buttons. You have the convenience of many speed dials or programmable features, or the necessity of following the activity of many lines.

IEEE Power over Ethernet class 3 for hardware version prior to V08, class 4 for hardware version V08 and above. In PoE class 3 case, one KEM can be attached and powered up through PoE together with the host 8851 phone, in PoE class 4 case, two KEMs can be attached and powered up through PoE together with the host 8851 phone.
The phone is compatible with both IEEE 802.3af and 802.3at switch blades and supports both Cisco Discovery Protocol and Link Layer Discovery Protocol - Power over Ethernet (LLDP-PoE).

8.5.1 (Non-secured mode Only)
8.6.2
9.1.2
10.5.2
11.0 and later

10.0 and later through fast track

8.6.2
9.1.2
10.5.2
11.0 and later

8.6.2 and later (using supported UCM versions above)

Specifications

G.711 a-law and mu-law, G.722, G.729a, Internet Low Bitrate Codec (iLBC), and Internet Speech Audio Codec (iSAC)

+ Dialing
Abbreviated dialing
Adjustable ring tones and volume levels
Adjustable display brightness
Agent greeting
Auto-answer
Auto-detection of headset
cBarge
Busy Lamp Field (BLF)
Busy Lamp Field (BLF) Pickup
Busy Lamp Field (BLF) speed dial
Callback
Call forward
Call forward notification
Call filter
Call history lists
Call park
Call pickup
Call timer
Call waiting
Call chaperone
Caller ID
Corporate directory
Conference, including traditional Join feature
Cross Cluster Extension Mobility (EMCC)
Direct transfer
Extension mobility
Fast-dial service
Forced access codes and client matter codes
Group call pickup
Hold
Intercom
Immediate divert
Malicious-caller ID
Message-waiting indicator (MWI)
Meet-me conference
Mobility
Music on hold (MoH)
Mute
Network profiles (automatic)
On- and off-network distinctive ringing
Personal directory
PickUp
Predialing before sending
Privacy
Private Line Automated Ringdown (PLAR)
Redial
Ring tone per line appearance
Service Uniform Resource Locator (URL)
Shared line
Silent monitoring and recording
Speed dial
Time and date display
Transfer
Uniform Resource Identifier (URI) dialing
Visual voice mail
Voice mail
Whisper coaching

You can control the hookswitch electronically with a third-party headset connected to either the USB port or auxiliary port, or directly paired with the phone through bluetooth.

Audio path moving sends audio through the IP Phone 8851 for a mobile device-connected call.
Call history synchronization allows you to view placed and missed calls of your mobile device from the IP Phone 8851.
Contact synchronization allows you to synchronize the contact objects from your mobile device to your IP Phone 8851.

The phone supports Cisco Discovery Protocol and 802.1Q/p standards, and can be configured with an 801.1Q VLAN header containing the VLAN ID overrides configured by the Admin VLAN ID.

Session Initiation Protocol (SIP) for signaling
Session Description Protocol (SDP)
IPv4 and IPv6
User Datagram Protocol (UDP) (used only for Real-Time Transport Protocol [RTP] streams)
Dynamic Host Configuration Protocol (DHCP) client or static configuration
Gratuitous Address Resolution Protocol (GARP)
Domain Name System (DNS)
Trivial File Transfer Protocol (TFTP)
Secure Hypertext Transfer Protocol (HTTPS)
VLAN
Real-Time Transport Protocol (RTP)
Real-Time Control Protocol (RTCP)
Cisco Peer-to-Peer Distribution Protocol (PPDP)
Cisco Discovery Protocol
LLDP (including LLDP-MED)
Switch speed auto-negotiation

Secure boot
Secure credential storage
Device authentication
Configuration file authentication and encryption
Image authentication
Random bit generation
Hardware cryptographic acceleration
Certificate Authority Proxy Function (CAPF)
Manufacturer-Installed Certificates (MIC)
Locally Significant Certificates (LSC)
Ethernet 802.1x supplicant options: Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) and Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)
Signaling authentication and encryption using TLS
Media authentication and encryption using SRTP
HTTPS for client and server
Secure Shell (SSH) Protocol server
Secure Sockets Later (SSL)-based VPN client

9.02 x 10.13 x 1.57 in. (229.1 x 257.34 x 40 mm) (excluding foot stand)

2.62 lb (1.19 kg)

Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic; Cosmetic class A

32 to 104°F (0 to 40°C)

14 to 140°F (-10 to 60°C)

Operating 10 to 90%, noncondensing
Non-operating 10 to 95%, noncondensing

Arabic (Arabic Area)
Bulgarian (Bulgaria)
Catalan (Spain)
Chinese (China)
Chinese (Hong Kong)
Chinese (Taiwan)
Croatian (Croatia)
Czech (Czech Republic)
Danish (Denmark)
Dutch (Netherlands)
English (United Kingdom)
Estonian (Estonia)
French (France)
French (Canada)
Finnish (Finland)
German (Germany)
Greek (Greece)
Hebrew (Israel)
Hungarian (Hungary)
Italian (Italy)
Japanese (Japan)
Latvian (Latvia)
Lithuanian (Lithuania)
Korean (Korea Republic)
Norwegian (Norway)
Polish (Poland)
Portuguese (Portugal)
Portuguese (Brazil)
Romanian (Romania)
Russian (Russian Federation)
Spanish (Columbia)
Spanish (Spain)
Slovak (Slovakia)
Swedish (Sweden)
Serbian (Republic of Serbia)
Serbian (Republic of Montenegro)
Slovenian (Slovenia)
Thai (Thailand)
Turkish (Turkey)

Regulatory compliance
CE Markings per directives 2004/108/EC and 2006/95/EC
Safety
UL 60950 Second Edition
CAN/CSA-C22.2 No. 60950 Second Edition
EN 60950 Second Edition (including A11 & A12)
IEC 60950 Second Edition (including A11 & A12)
AS/NZS 60950
GB4943
EMC - Emissions
47CFR Part 15 (CFR 47) Class B
AS/NZS CISPR22 Class B
CISPR22: 2005 w/Amendment 1: 2005 Class B
EN55022: 2006 w/Amendment 1: 2007 Class B
ICES003 Class B
VCCI Class B
EN61000-3-2
EN61000-3-3
KN22 Class B
EMC - Immunity
EN55024
CISPR24
EN60601-1-2
KN24
Armadillo Light
Telecom
FCC Part 68 HAC
CS-03-HAC
AS/ACIF S004
AS/ACIF S040
NZ PTC 220
Industry Standards: TIA 810 and TIA 920
Industry Standards: IEEE 802.3 Ethernet, IEEE 802.3af and 802.3at
Korea (RRA Public Notification 2010-36, Nov 01, 2010)
Korea (RRA Announce 2011-2, Feb 28, 2011)
Radio
FCC Part 2.1093 (BT RF Exposure TR)
RSS-102 (BT RF Exposure TR)
RSS-210
EN 300.328
EN50385 (BT RF Exposure TR)
EN 301-489-1
EN 301-489-17
NCC LP0002
Korea (RRL No. 2006-128, RRL No. 2006-129)
Japan Bluetooth GFSK/EDR