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-answer

●  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

●  cBarge

●  Corporate directory

●  Conference

●  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

●  Hold/resume

●  Immediate divert

●  Intercom (Not available on the IP Phone 7811)

●  Join (Not available on the IP Phone 7811)

●  Message-waiting indicator

●  Meet me conference

●  Mobility

●  Music on hold

●  Mute

●  Network profiles (automatic)

●  On- and off-network distinctive ringing

●  Personal directory

●  Privacy

●  Private Line Automated Ringdown (PLAR)

●  Redial

●  Ring tone per line appearance

●  Shared line

●  Silent monitoring and recording

●  Speed dial

●  Time and date display

●  Transfer

●  Voicemail

●  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.

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

●  Cryptography

Configuration options

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

Physical dimensions (H×W×D)

●  IP Phone 7821: 207 x 206 x 28mm (exclude foot stand)

Weight

●  IP Phone 7821: 867g

Display

●  IP Phone 7821: 3.5” 396×162 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 104°F (0 to 40°C)

Nonoperational temperature shock

●  14 to 140°F (-10 to 60°C)

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

●  Safety

◦   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

●  Telecom

◦   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