Original New IP Phone CP-8841-K9 In Stock

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 forwar

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