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Cisco IP Phone 8851 VoIP phone

  • VoIP phone
  • 5 lines
  • Charcoal

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Mfr part code: CP-8851-3PCC-K9=

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    Cisco IP Phone 8851 VoIP phone Product Description

    The Cisco IP Phone 8851 is a business-class collaboration endpoint that combines high-fidelity,reliable,secure,and scalable voice communications with Cisco Intelligent Proximity for telephony integration for personal mobile devices to support midsize to large enterprise businesses.

    With the Cisco IP Phone 8851,you can increase personal productivity through an engaging user experience that is both powerful and easy-to-use. The IP Phone 8851 combines an attractive ergonomic design with wideband audio for crystal clear voice communications,"always-on" reliability,encrypted voice communications to enhance security,and access to a comprehensive suite of unified communication features from Cisco communication servers.

    In addition,Cisco Intelligent Proximity brings the worlds of desk and mobile together for you when you are using your mobile device at the desk for your work. You can move the audio path over to the Cisco IP Phone 8851 during active mobile calls to take advantage of its superior audio acoustics. An example would be to share a conversation with a colleague who you want to listen in. This capability gives you greater flexibility and a superior user experience when at your desk.

    The IP Phone 8851 also comes standard with a USB port so you can charge your smartphone when at your desk,and stay connected when away from your desk.

    The Cisco IP Phone 8851 offers five programmable line keys. You can configure keys to support either multiple directory numbers or calling features such as speed dial. You can also boost productivity by handling multiple calls for each directory number using the multicall-per-line feature. Fixed-function keys give you one-touch access to applications,messaging,directory,as well as often-used calling features such as hold/resume,transfer,and conference. A five-way navigation cluster helps you transition through menus more easily. Backlit acoustic keys provide flexibility for audio path selection and switching.

    Technical Specifications


    Product Type VoIP phone
    Body Colour Charcoal
    Body Material ABS plastic

    Phone Features

    Wireless Interface Provided Bluetooth
    Bluetooth Profiles Hands-Free Profile (HFP), Phonebook Access Profile (PBAP)
    Call Services Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability
    Key Expansion Module Max Qty 2
    Dialer Type Keypad
    Dialer Location Base
    Conference Call Capability Yes
    Speakerphone Yes
    Programmable Buttons Qty 5
    Indicators Voice message waiting indicator, speakerphone indicator, headset
    Firmware Upgradable Yes
    Additional Functions Call timer, Intercom

    IP Telephony

    Main Features Multiple VoIP protocol support, integrated Ethernet switch
    VoIP Yes
    VoIP Protocols SIP, RTCP, RTP, SRTP, SDP
    Voice Codecs G.722, G.729a, G.711u, G.711a, iLBC, iSAC
    Lines Supported 5 lines
    Quality of Service IEEE 802.1Q (VLAN), IEEE 802.1p
    Security IEEE 802.1X, TLS
    Power Over Ethernet (PoE) Support Yes
    Network Protocols IP, TFTP, UDP, Cisco Discovery Protocol (CDP), HTTP, DNS, HTTPS, SRTP, Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED), RTCP, RTP
    Network Ports Qty 2 x Ethernet 10Base-T/100Base-TX/1000Base-T
    Network Features Class 3 PoE


    Type LCD display - colour
    Display Location Base
    Diagonal Size 5"
    Display Resolution 800 x 480 pixels
    Colour Depth 24-bit (16.7 million colours)
    Backlit Yes


    Connections Headset jack / RJ-9 ¦ Electronic hook switch (EHS) ¦ USB
    Hearing Aid Compatible Yes
    Placing / Mounting Wall-mountable, table mount

    Dimensions & Weight (Base)

    Width 25.734 cm
    Depth 4 cm
    Height 22.91 cm
    Weight 1.19 kg

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