CP-8811-K9 Specifications
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Audio codec support
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G.711a-law and mu-law, G.722, G.729a, Internet Low Bitrate Codec (iLBC), and Internet Speech Audio Codec (iSAC)
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Call features
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+ Dialing
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Abbreviated dialing
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Adjustable ring tones and volume levels
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Adjustable display brightness
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Agent greeting
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Auto-answer
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Auto-detection of headset
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cBarge
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Busy Lamp Field (BLF)
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Busy Lamp Field (BLF) Pickup
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Busy Lamp Field (BLF) speed dial
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Callback
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Call forward
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Call forward notification
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Call filter
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Call history lists
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Call park
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Call pickup
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Call timer
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Call waiting
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Call chaperone
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Caller ID
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Corporate directory
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Conference, including traditional Join feature
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Cross Cluster Extension Mobility (EMCC)
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Direct transfer
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Extension mobility
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Fast-dial service
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Forced access codes and client matter codes
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Group call pickup
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Hold
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Intercom
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Immediate divert
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Malicious-caller ID
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Message-waiting indicator (MWI)
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Meet-me conference
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Mobility
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Music on hold (MoH)
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Mute
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Network profiles (automatic)
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On- and off-network distinctive ringing
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Personal directory
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PickUp
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Predialing before sending
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Privacy
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Private Line Automated Ringdown (PLAR)
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Redial
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Ring tone per line appearance
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Service Uniform Resource Locator (URL)
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Shared line
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Silent monitoring and recording
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Speed dial
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Time and date display
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Transfer
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Uniform Resource Identifier (URI) dialing
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Visual voice mail
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Voice mail
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Whisper coaching
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Electronic hookswitch
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You can control the hookswitch electronically with a third-party headset connected to an auxiliary port.
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Quality-of-service (QoS) options
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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.
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Network features
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Session Initiation Protocol (SIP) for signaling
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Session Description Protocol (SDP)
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IPv4 and IPv6
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User Datagram Protocol (UDP) (used only for Real-Time Transport Protocol [RTP] streams)
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Dynamic Host Configuration Protocol (DHCP) client or static configuration
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Gratuitous Address Resolution Protocol (GARP)
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Domain Name System (DNS)
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Trivial File Transfer Protocol (TFTP)
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Secure Hypertext Transfer Protocol (HTTPS)
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VLAN
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Real-Time Transport Protocol (RTP)
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Real-Time Control Protocol (RTCP)
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Cisco Peer-to-Peer Distribution Protocol (PPDP)
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Cisco Discovery Protocol
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LLDP (including LLDP-MED)
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Switch speed auto-negotiation
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Security features
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Secure boot
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Secure credential storage
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Device authentication
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Configuration file authentication and encryption
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Image authentication
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Random bit generation
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Hardware cryptographic acceleration
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Certificate Authority Proxy Function (CAPF)
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Manufacturer-Installed Certificates (MIC)
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Locally Significant Certificates (LSC)
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Ethernet 802.1x supplicant options: Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) and Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)
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Signaling authentication and encryption using TLS
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Media authentication and encryption using SRTP
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HTTPS for client and server
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Secure Shell (SSH) Protocol server
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Secure Sockets Layer (SSL)-based VPN client
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Physical dimensions
(H × W × D)
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9.02 x 10.13 x 1.57 in. (229.1 x 257.34 x 40 mm)
(excluding foot stand)
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Weight (with handset)
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Phone-casing composition
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Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic; Cosmetic class A
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Operational temperature
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Nonoperational temperature shock
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14 to 140°F (-10 to 60°C)
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Humidity
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Operating 10 to 90%, noncondensing
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Nonoperating 10 to 95%, noncondensing
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