Supporting two lines, 3.5" 396 × 162, 2 x 10/100BASE-T, PoE, Black/Silver, Third-Party Call Control
Increase Productivity with Clear Communications Deploy reliable and highly secure voice communications with the Cisco IP Phone 7821. This full-featured phone is easy to use and easy on your budget. This endpoint supports wideband audio for superior voice communications quality and advanced IP telephony features to make your business calls more efficient and productive.
The Cisco IP Phone 7821 is a two-line endpoint that is designed for information workers and managers. This phone is ideal for:
- Customers who currently use traditional analog or digital phones but want to move to IP telephony - Organizations that want to expand their voice communications investment by using Cisco Unified Communications
Superior User Experience To improve the user experience, this phone has four context-sensitive soft keys and a white-backlit display that:
- Measures 3.5 inches (89 millimeters) - Has high-resolution graphics and grayscale - Is 396 x 162 pixels
Other features and capabilities of the 7821 phone that contribute to an exceptional user experience include:
- Dedicated fixed keys for common functions such as conference, messaging, and directory, and a two-way navigation button - Full wideband audio (G.722) performance throughout the handset, headset, and speakerphone for superior clarity - Electronic hookswitch control for added flexibility in managing personal calls when using third-party headsets
Easy Administration The 7821 phone is easy to deploy and manage, with features such as:
- Power over Ethernet (PoE) Class 1 endpoint and Cisco EnergyWise to reduce your energy costs and carbon footprint - Enhanced customization with a field-replaceable bezel option - Integrated IEEE 10/100 switch to support traffic from a co-located PC for reduced cable infrastructure costs - A wall-mount option for common areas such as aisles or hallways, or where desk space is limited
Design
Wall mountable
Yes
Mounting
Desk/Wall
Case material
Polycarbonate
Product colour
Black, Silver
Handset type
Wired handset
Product type
IP Phone
Phone features
Caller ID
Yes
Call waiting
Yes
Speed dialling
Yes
Call hold
Yes
Call forwarding
Yes
Conference call
Yes
Answering machine
Yes
Lines quantity
2 lines
Management features
Volume control
Digital
Integrated voicemail
Yes
Display
Touchscreen
No
Display resolution
396 x 162 pixels
Display diagonal
8.89 cm (3.5")
Audio
Voice codecs
G.711a, G.722, G.729A, G.729B, iLBC
Speakerphone
Yes
Network
Supported network protocols
IEEE 802.3, IEEE 802.3u, IEEE 802.3af
Quality of Service (QoS) support
Yes
Security algorithms
802.1x RADIUS
Bluetooth
No
Wi-Fi
No
Ethernet LAN
Yes
Ports & interfaces
Ethernet LAN (RJ-45) ports
2
Certificates
Safety
UL 60950, CAN/CSA - C22.2, EN 60950, IEC 60950, AS/NZS 60950, GB4943
