Cisco IP Phone 7821

Product Description

Get easy-to-use, highly secure, and highly cost-effective voice communications for small to large businesses. The 7821 is supported on Cisco on-premises, hosted, Webex Calling and third-party call control offer flexible deployment options.

Core Features:

• 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
• 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

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) – GB 2312
● 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 ● IP Phone 7811: 207 x 195 x 33mm (exclude foot stand)
(H×W×D) ● IP Phone 7821: 207 x 206 x 28mm (exclude foot stand)
● IP Phone 7841: 207 x 206 x 28mm (exclude foot stand)
● IP Phone 7861: 207 x 265 x 28mm (exclude foot stand)
Weight ● IP Phone 7811: 806g
● IP Phone 7821: 867g
● IP Phone 7841: 868g
● IP Phone 7861: 1053g
Display ● IP Phone 7821, 7841, 7861: 3.5” 396×162 pixels
● IP Phone 7811: 3.28” 384×106 pixels
Ethernet switch ● The phone has a 10/100BASE-T (The Cisco®
IP Phone 7811, 7821 and 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)
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 and A12)
◦ IEC 60950 Second Edition (including A11 and 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