CISCO IP PHONE 8841-K9

The CP-8841-K9 is an advanced communication device designed to revolutionize the way organizations connect and communicate. With crystal-clear audio quality, an intuitive user interface, and a range of collaboration features, this device enhances productivity and streamlines workflows. Its customizable options allow users to personalize their experience, while efficient call management and directory integration ensure seamless communication. With a focus on security, the CP-8841-K9 protects sensitive data with secure voice communication protocols. Experience effortless communication and elevate your business with the CP-8841-K9.

Product specifications

FeaturesSpecifications
Audio

Automatic Gain Control
Comfort Noise Generation
Silence Suppression/Voice Activity Detection
 Acoustic Echo Cancellation (AEC)
Dynamic Noise Reduction

Audio codec supportG.711a-law and mu-law, G.722, G.729a/b, Internet Low Bitrate Codec (iLBC), and Internet Speech Audio Codec (iSAC), G.722.1, G.772.2, OPUS
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)


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