| 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) |
