CP-8851-K9

Number

Description

①

AC power wall plug (optional)

②

Network port (10/100 SW) connection. IEEE 802.3af power enabled.

③

Access port (10/100 PC) connection.

④

Auxiliary port (optional).

⑤

Handset connection.

⑥

Analog headset connection (optional).

⑦

2 USB ports

Number

Buttons

Number

Buttons

①

Handset light strip

⑪

Mute button

②

Programmable feature

buttons and Session

buttons

⑫

Headset button

③

Phone screen

⑬

Keypad

④

Softkey buttons

⑭

Volume button

⑤

Navigation cluster and Select button

⑮

Applications button

⑥

Release Button

⑯

Messages button

⑦

Transfer button

⑰

Contacts button

⑧

Hold/Resume button

⑱

Back button

⑨

Conference button

⑲

Handset

⑩

Speakerphone button

CP-8851-K9 Specifications

Audio codec support

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

Key call features support

• + 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

Electronic hookswitch

• 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.

Cisco Intelligent Proximity

• 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.

Quality-of-service (QoS) options

• 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.

Network features

• 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

Security features

• 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

Physical dimensions
(H × W × D)

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

Weight (with handset)

• 2.62 lb (1.19 kg)

Phone-casing composition

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

Operational temperature

• 32 to 104°F (0 to 40°C)

Nonoperational temperature shock

• 14 to 140°F (-10 to 60°C)

Humidity

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

Language support

• 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)

Certification and compliance

• 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