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 | ● 9.02 x 10.13 x 1.57 in. (229.1 x 257.34 x 40 mm) |
(H × W × D) | (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) |