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CISCO CP-7841-K9= | Cisco UP Phone 7841

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Cisco UP Phone 7841
SKU: 2491579

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Product Description


The Cisco® IP Phone 7800 Series is a cost-effective, high-fidelity voice communications portfolio designed to improve your organization’s people-centric communications, while reducing your operating costs.

It combines an attractive new ergonomic design with “always-on” reliability and secure encrypted communications. The Cisco® IP Phone 7800 Series delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience.

The Cisco® IP Phone 7800 Series introduces three models to the Cisco IP Phone portfolio. From left-to-right (Figure 1), they are:

   The IP Phone 7821 supporting two lines

   The IP Phone 7841 supporting four lines

   The IP Phone 7861 supporting sixteen lines

The line keys on each model are fully programmable. You can set up keys to support either lines, such as directory numbers, or call features like speed dialing. You can also boost productivity by handling multiple calls for each directory number, using the multi-call per-line appearance feature. Tri-color LEDs on the line keys support this feature and make the phone simpler and easy to use.

Fixed function keys on all models give you one-touch access to service, messaging, directory, hold/resume, transfer, and conference features. A full-duplex speakerphone lets you set up clear multi-party conferences for flexible, productive collaboration.

The Cisco® IP Phone 7800 Series sets a new standard in usability and delivers a context-sensitive user experience. It features a high resolution 3.5” (396x162) greyscale display, with white backlighting for easy reading. Localized language support, including right-to-left onscreen text, meets the needs of global users.

The Cisco® IP Phone 7800 Series is also more energy-efficient and eco-friendly, to support your green initiatives. Each phone supports Power-over-Ethernet (PoE) Class 1 and Cisco’s EnergyWise, and is Energy Star certified. A standard power-save option reduces power consumption during off-hours, to save money and maximize energy efficiency.

The IP Phone 7800 Series portfolio is ideal for any mid-sized to large enterprise company that wants to update its phone system from a traditional analog or digital-based system to an IP Communications system. It’s also an excellent choice if you’re seeking to expand your voice communications support with your current Cisco Unified Communications solution.

Features and Benefits

Table 1 lists features and benefits of the Cisco® IP Phone 7800 Series

Table 1.       Features and Benefits



Hardware Features

Ergonomic design

  The phone offers an easy-to-use interface and provides a traditional telephony-like user experience.

Graphical display

  White backlit, greycale, 396×162 pixel-based display (3.5”) provides scrollable access to calling features and text-based XML applications.


  The handset is a standard wideband-capable audio handset (connects through an RJ-9 port).
  The handset is hearing aid-compatible (HAC) and meets Federal Communications Commission (FCC) loudness requirements for the Americans with Disabilities Act (ADA). You can achieve Section 508 loudness requirements by using industry-standard inline handset amplifiers such as Walker Equipment W-10 or CE-100 amplifiers. The dial pad is also ADA-compliant.


  The analog headset jack is a standard wideband-capable RJ-9 audio port.

Backlit Indicator

  The phone supports backlit indicators for the audio path keys (handset, headset and speakerphone), select key, line keys, and message waiting.

Volume control

  A volume-control toggle provides easy decibel-level adjustments of the handset, monitor speaker, and ringer.

Full duplex speakerphone

  Full-duplex speakerphone allows gives you flexibility in placing and receiving calls.

Replaceable bezel

  Phone includes a black bezel. Optional silver bezel is also available separately.

Dual-position foot stand

  The display is easy to view and the buttons and keys are easy to use. The two-position foot stand supports viewing angles of 30 degrees and 45 degrees; you can remove the foot stand for wall mounting, with mounting holes located on the base of the phone.


  The phone can be installed on a wall using optional wall-mount kit (available separately).

Electronic hook switch

  The hookswitch can be controlled electronically with a third party headset connected to the auxiliary port.


  The phone has the following keys
   Line keys
   Two-way navigation and select keys
   Hold/Resume, Transfer and Conference keys
   Messaging, Service and Directory keys
   Standard key pads
   Volume control toggle key
   Speakerphone, headset and mute keys

Power Features

IEEE PoE class 1

  The phone supports IEEE 802.3af PoE (Class 1); power consumption does not exceed 3.84 watts.

Cisco power cube 3

  This power cube is used as a standard Cisco IP Phone Power Supply for non-PoE deployments.

Call-Control Support

Cisco Unified Communications Manager

  10.x and later

Cisco Business Edition 6000

  10.x and later

Cisco Hosted Collaboration Solution

  8.6.2 and later (using supported UCM versions above)



The Cisco® IP Phone 7821 requires a Basic User Connect License (UCL) in order to connect to Cisco Unified Communications Manager. The Cisco® IP Phone 7841 and 7861 require an Enhanced User Connect License (UCL) in order to connect to Cisco Unified Communications Manager.

Product Specifications

Table 2 lists the features and specifications of The Cisco® IP Phone 7800 Series.

Table 2.       Features and Specifications



Signaling protocol support

  Session Initiation Protocol (SIP)

Codec support

  G.711a/ µ, G.722, G.729a, iLBC

Key call features support

  + Dialing (E.164)
  Abbreviated dial
  Adjustable ringing and volume levels
  Adjustable display contrast
  Agent greeting
  Auto-detection of headset
  Busy Lamp Field (BLF)
  Call back
  Call forward
  Call history
  Call park
  Call Pickup
  Call timer
  Call waiting
  Caller ID
  Corporate directory
  Cross Cluster Extension Mobility (EMCC)
  Dial from the list
  Direct transfer
  Do not disturb
  Extension Mobility (EM)
  Forced access codes and client matter codes
  Group call pickup
  Immediate divert
  Message-waiting indicator
  Meet me conference
  Music on hold
  Network profiles (automatic)
  On- and off-network distinctive ringing
  Personal directory
  Private Line Automated Ringdown (PLAR)
  Ring tone per line appearance
  Shared line
  Silent monitoring and recording
  Speed dial
  Time and date display
  Whisper coaching

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)
  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)

Multiple ring tones

  The phone supports user-adjustable ring tones.


  The phone identifies incoming messages and categorizes them for users on the screen. This makes it fast and easy to return calls using direct dial-back capability. The corporate directory integrates with the Lightweight Directory Access Protocol (LDAP) standard directory.

Quality-of-service (QoS) options

  The phone supports CDP 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.


  Image authentication
  Device authentication
  File authentication
  Signaling authentication
  Media encryption using Secure Real-Time Transfer Protocol (SRTP) using AES-128
  Signaling encryption using Transport Layer Security (TLS) Protocol using AES-128 or AES-256
  Encrypted configuration files
  802.1X authentication

Configuration options

  The user can configure IP address assignment statically or through the DHCP client.

Physical dimensions (H×W×D)

  CP-7821: 207 x 206 x 28mm (exclude foot stand)
  CP-7841: 207 x 206 x 28mm (exclude foot stand)
  CP-7861: 207 x 265 x 28mm (exclude foot stand)


  CP-7821: 867g
  CP-7841: 868g
  CP-7861: 1053g


  3.5” 396×162 pixels

Ethernet switch

  The phone has a 10/100BASE-T (The Cisco ® IP Phone 7821 & 7861) or a10/100/1000BASE-T (The Cisco ® IP Phone 7841) Ethernet connection through two RJ-45 ports, one for the LAN connection and the other for a downstream Ethernet device connection like a PC.

Phone casing composition

  Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic.

Power requirements

  The phone is an interoperable IEEE 802.3af PoE (Class 1 device); 48 VDC is required; it can be supplied locally at the desktop using an optional AC-to-DC power supply (CP-PWR-CUBE-3=). Use of the power supply also requires the use of one of the corresponding AC country cords.

Operational temperature

  32 to 104°F (0 to 40°C)

Nonoperational temperature shock

  14 to 140°F (-10 to 60°C)


  Operating 10% to 90%, non-condensing
  Non-operating 10% to 95%, non-condensing


  Cisco cosmetic class A

Certification and compliance

  Regulatory Compliance
   CE Markings per directives 2004/108/EC and 2006/95/EC
   UL 60950 Second Edition
   CAN/CSA-C22.2 No. 60950 Second Edition
   EN 60950 Second Edition (including A11 & A12)
   IEC 60950 Second Edition (including A11 & A12)
   AS/NZS 60950
  EMC - Emissions
   47CFR Part 15 (CFR 47) Class B
   AS/NZS CISPR22 Class B
   CISPR22: 2005 w/Amendment 1: 2005 Class B
   EN55022: 2006 w/Amendment 1: 2007 Class B
   ICES003 Class B
   VCCI Class B
   KN22 Class B
  EMC - Immunity
   Armadillo Light
   FCC Part 68 HAC
   AS/ACIF S004
   AS/ACIF S040
   NZ PTC 220
   Industry Standards: TIA 810 and TIA 920
   Industry Standards: IEEE 802.3 Ethernet, IEEE 802.3af and 802.3at

Additional Information

Additional Information

Manufacturer CISCO
MPN CP-7841-K9=
Warranty Statutory Manufacturer Warranty

Brand Description


Did you know that the majority of the core routing equipment used to power the Internet comes from Cisco? Well, now you do. The Cisco brand is internationally renowned for providing high-end and top-notch networking products. In fact, Cisco’s networking gears have become synonymous with reliability, performance and durability throughout.

You can often find Cisco’s equipment being utilized in huge organization as well as households from global communications carriers, governments, schools, hospitals, branch offices and homes. Cisco products allow you to stay on top of your business with a simple yet fully featured network connectivity solutions across multiple IT and networking needs. Their vast range of Wireless Access Points, Routers, Switches, Data center networking equipment Unified Communications, Conferencing and many more represent high quality, durability, reliability, easy maintenance and operational efficiency. These qualities have won popularity for the Cisco brand not only in enterprise organizations but even at home.

You can find a broad range of Cisco equipment on our website for all your networking needs


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