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  • The phone offers an easy-to-use interface and provides a traditional telephony-like user experience
  • The default handset is a standard narrowband-capable audio handset (connects through an RJ-9 port) for the IP Phone 7811, and wideband on handset is available with purchase of additional wideband handset
  • A volume-control toggle provides easy decibel-level adjustments of the handset, monitor speaker, and ringer
  • Full-duplex speakerphone allows gives you flexibility in placing and receiving calls. For added security, the audible dual tone multifrequency (DTMF) tones are masked when the speakerphone mode is used
  • The phone can be installed on a wall using optional wall-mount kit (available separately)
  • The phone supports IEEE 802.3af PoE (Class 1); power consumption does not exceed 3.84 watts
  • The Cisco IP Phone 7811 and 7821 require a Basic User Connect License (UCL) in order to connect to Cisco Unified Communications Manager

Easy-to-Use, Cost-Effective Voice VoIP Collaboration

The IP Phone 7811 delivers simple, highly secure, and cost-effective VoIP communications for small to large businesses. It is ideal for occasional-to-light communications needs, such as in lobbies, cafeterias, and conference centers. Cisco on-premises, hosted, Webex Calling, and third-party call control offer flexible deployment options.

Exceptional User Experience

- High-resolution, graphical grayscale display for easier viewing
- Dedicated fixed keys for increased efficiency
- A built-in speakerphone for hands-free communications
- Wideband for enhanced audio, supported with an optional wideband handset

Simple, Cost-Effective Administration

This phone is easy to deploy and manage, with features such as:

- Flexible deployment options include Cisco on-premises, hosted, and Webex Calling.
- Cisco Expressway, which enables remote workers to enjoy single sign-on access without a VPN client
- Power over Ethernet (PoE) Class 1 and Cisco EnergyWise to help reduce energy costs
- Integrated IEEE 10/100 switch to reduce installation costs
- Cisco Webex Phone OS consolidates administration with software common to both the IP Phone 7800 Series and IP Phone 8800 Series

Design
Mounting Desk/Wall
Case material Acrylonitrile butadiene styrene (ABS)
Product colour Charcoal
Handset type Wired handset
Product type IP Phone
Phone features
Call transfer Yes
Call park Yes
Call return Yes
Call history Yes
Intercom Yes
Caller ID Yes
Call waiting Yes
Speed dialling Yes
Call hold Yes
Call forwarding Yes
Conference call Yes
Redialing Yes
Do not disturb function Yes
Call pick up Yes
Answering machine Yes
Lines quantity 1 lines
Display
Backlight display No
Display resolution 384 x 106 pixels
Display diagonal 8.33 cm (3.28")
Camera
Front camera No
Audio
Voice codecs G.711a, G.711u, G.722, G.729A, iLBC
Microphone mute Yes
Speakerphone Yes
Network
Quality of Service (QoS) support Yes
DHCP client Yes
Supported network protocols SIP, SRTP, TLS
Networking standards IEEE 802.3, IEEE 802.3af
Security algorithms 128-bit AES, 256-bit AES, 802.1x RADIUS
Bluetooth No
Wi-Fi No
Ethernet LAN interface type Fast Ethernet
Ethernet LAN data rates 10,100 Mbit/s
Ethernet LAN Yes
Ports & interfaces
DC-in jack Yes
Ethernet LAN (RJ-45) ports 2
RJ-9 ports quantity 1
Certificates
Certification 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● Telecom◦ FCC Part 68 HAC◦ CS-03-HAC◦ AS/ACIF S004◦ AS/ACIF S040◦ NZ PTC 220
Compliance industry standards TIA 810, TIA 920IEEE 802.3 Ethernet, IEEE 802.3af, 802.3at
Safety UL 60950 Second Edition, CAN/CSA-C22.2 No. 60950 Second Edition, EN 60950 Second Edition (incl. A11 & A12), IEC 60950 Second Edition (incl. A11 & A12), AS/NZS 60950, GB4943
Power
Power over Ethernet (PoE) Yes
Operational conditions
Operating temperature (T-T) 0 - 40 °C
Operating relative humidity (H-H) 10 - 90%
Weight & dimensions
Weight 806 g
Height 33 mm
Depth 195 mm
Width 207 mm