CP-8841-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 the 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

●  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)