CP-8811-K9

Product Code

CP-8811-K9

Display

5’’ (800×480) monochrome display with white backlight

Ethernet Switch

10/100/1000

Programmable Line Keys

4

Number of Line Keys

5

Full Duplex Speakerphone

Yes

Wideband Audio

Yes

PoE Classification

Class 2

Third-party Call Control

Yes

Replaceable Bezel

Yes (Black, Silver)

Wall Mountable

Yes

Model

CP-8811-K9

CP-8831-K9

CP-8841-K9

CP-8851-K9

Ethernet Switch

10/100/1000

10/100

10/100/1000

10/100/1000

Programmable Line Keys

4

4

4

4

Number of Line Keys

5

1

5

5

Full Duplex Speakerphone

Yes

Yes

Yes

Yes

Wideband Audio

Yes

Yes

Yes

Yes

PoE Classification

Class 2

Class 3

Class 2

Class 3

Bluetooth / DECT

No

DECT (mics)

No

Bluetooth

Third-party Call Control

Yes

Yes

Yes

Yes

Replaceable Bezel

Yes (Black, Silver)

No

Yes (Black, Silver)

Yes (Black, Silver)

Wall Mountable

Yes

No

Yes

Yes

CP-8811-K9 Specifications

Audio codec support

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

Call features

• + 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 an auxiliary port.

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 Layer (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)

• 2.58 lb (1.17 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
• Nonoperating 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)