Consider this simple, secure, and cost-effective voice communications for any size businesses with the Cisco IP Phone 7841. This handset is perfect for moderately day-to-day voice communications needs of most office workers, administrative staff, and managers.

Buy: $94.99
Lease: $3.80




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 (Not available on the IP Phone 7811)
  Busy Lamp Field (BLF) (Not available on the IP Phone 7811)
  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
  Intercom (Not available on the IP Phone 7811)
  Join (Not available on the IP Phone 7811)
  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)

  IP Phone 7841: 207 x 206 x 28mm (exclude foot stand)


  IP Phone 7841: 868g


  IP Phone 7821, 7841, 7861: 3.5” 396×162 pixels

Ethernet switch

  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
◦   GB4943
  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
◦   EN61000-3-2
◦   EN61000-3-3
◦   KN22 Class B
  EMC – Immunity
◦   EN55024
◦   CISPR24
◦   EN60601-1-2
◦   KN24
◦   Armadillo Light
◦   FCC Part 68 HAC
◦   CS-03-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