Buy Cisco CP-8811-K9= VOIP Phone | Bar None Technologies


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Cisco CP-8811-K9= VOIP Phone

  • With the IP Phone 8811, you can increase personal productivity through an engaging user experience that is both powerful and easy-to-use.
  • The IP Phone 8811 combines an attractive new 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 communications features from Cisco on-premises and hosted infrastructure platforms.
  • The IP Phone 8811 also can be supported on third party hosted call control services.
  • Other Key Features of the phone included.
    • The Cisco IP Phone 8811 offers a 5-in. high-resolution (800 x 480) widescreen backlit grayscale display. Localized language support, including right-to-left on-screen text, meets the needs of global users.

      The phone supports a built-in Gigabit Ethernet switch for your PC connection.

      Support for Cisco EnergyWise technology makes the Cisco IP Phone 8811 more energy-efficient and ecofriendly; the phone is qualified by the Energy Star organization.

      An optional wall-mount kit is orderable separately for customers seeking this capability.





  • + Dialing
  • Abbreviated dialing
  • Adjustable ring tones and volume levels
  • Adjustable display brightness
  • Agent greeting
  • Application launch pad
  • Auto-answer
  • Auto-detection of headset
  • cBarge
  • Busy Lamp Field (BLF)
  • BLF Pickup
  • 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 Voicemail
  • Voicemail
  • Whisper coaching





Audio Codec Support

Electronic Hookswitch

  • Audio
    • Automatic Gain Control
    • Comfort Noise Generation
    • Silence Suppression/Voice Activity Detection
    • Acoustic Echo Cancellation (AEC)
    • Dynamic Noise Reduction
  • 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)
  • Electronic Hookswitch
    • You can control the hookswitch electronically with a third-party headset connected to either the USB or auxiliary port, or directly paired with the phone through Bluetooth.





  • Operational Temperature
    •  32 to 104°F (0 to 40°C)
  • Nonoperational Temperature Shock
    • 14 to 140°F (-10 to 60°C)


  • Operating 10 to 90%, noncondensing
    Nonoperating 10 to 95%, noncondensing
Phone Casing Composition
  • Polycarbonate Acrylonitrile Butadiene Styrene (ABS) textured plastic, Cosmetic class A
Quality of Service (QoS) Options 
  • The phone supports Cisco Discovery Protocol and 802.1Q/p standards,
  • You can configure it 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 HTTP (HTTPS)
  • VLAN
  • Real-Time Transport Protocol (RTP)
  • Real-Time Control Protocol (RTCP)
  • Cisco Peer-to-Peer Distribution Protocol (PPDP)
  • Cisco Discovery Protocol
  • LLDP (including LLDPMedia Endpoint Discovery [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 Transport Layer Security (TLS)
  • Media authentication and encryption using Secure Real-Time Transport Protocol (SRTP)
  • HTTPS for client and server
  • Secure Shell (SSH) Protocol server
  • Secure Sockets Layer (SSL)-based VPN client

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 (Canada)
  • French (France)
  • 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)

Dimensions (HxWxD)


  •   9.02 x 10.13 x 1.57 in. (excluding foot stand)
  • (229.1 x 257.34 x 40 mm) (excluding foot stand)
  •  2.58 lb. (1.19 kg) – Weight


The Cisco IP Phone 8811-K9= requires an Enhanced User Connect License (UCL) in order to connect to Cisco Unified Communications Manager.



The Cisco IP Phone 8811-K9= phones are covered by a Cisco standard 1-year replacement warranty.

MPN: CP-8811-K9=

Additional information

Weight 3.0 lbs
Dimensions 4.0 × 10.15 × 9.05 in