• VoIP phone
  • SIP
  • SRTP
  • Power Adapter Sold Separately

Additional information



Invest in affordable and reliable voice communications with the Cisco IP Phone 7811. It is full-featured, highly secure, easy to use, and offers access to XML and CTI applications. The Cisco IP Phone 7811 is a single-line phone that is optimal for information workers and managers.
Signaling protocol support   Session Initiation Protocol (SIP)
Codec support   G.711a/, 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       

Multiple ring tones The phone supports user-adjustable ring tones.
Directories 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.

Security   Certificates

  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 (HWD)   IP Phone 7811: 207 x 195 x 33mm (exclude foot stand)
Weight IP Phone 7811: 806g
Display IP Phone 7811: 3.28″ 384106 pixels
Ethernet switch  The phone has a 10/100BASE-T or a 10/100/1000BASE-T
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 104F (0 to 40C) 
Nonoperational temperature shock 14 to 140F (-10 to 60C)
Humidity   Operating 10% to 90%, non-condensing

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

Cosmetic  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       


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