Product Description
IP Phone 7821 supporting two lines
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.
Design |
Mounting |
Desk/Wall |
Wall mountable |
Yes |
Case material |
Polycarbonate |
Product colour |
Black, Silver |
Handset type |
Wired handset |
Product type |
IP Phone |
Phone features |
Caller ID |
Yes |
Do not disturb function |
Yes |
Call hold |
Yes |
Conference call |
Yes |
Call waiting |
Yes |
Distinctive ring |
Yes |
Speed dialling |
Yes |
Call forwarding |
Yes |
Answering machine |
Yes |
Lines quantity |
2 lines |
Management features |
Volume control |
Digital |
Integrated voicemail |
Yes |
Display |
Backlight display |
Yes |
Touchscreen |
No |
Display resolution |
396 x 162 pixels |
Display diagonal |
8.89 cm (3.5") |
Audio |
Voice codecs |
G.711a, G.722, G.729A, iLBC |
Speakerphone |
Yes |
Network |
Supported network protocols |
IEEE 802.3, IEEE 802.3u, IEEE 802.3af |
Security algorithms |
128-bit AES, 256-bit AES, 802.1x RADIUS, SRTP, SSL/TLS |
Quality of Service (QoS) support |
Yes |
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 |
Power |
Power over Ethernet (PoE) |
Yes |
Operational conditions |
Operating temperature (T-T) |
0 - 40 °C |
Operating relative humidity (H-H) |
10 - 90% |
Storage relative humidity (H-H) |
10 - 95% |
Storage temperature (T-T) |
-10 - 60 °C |
Weight & dimensions |
Weight |
867 g |
Height |
28 mm |
Depth |
206 mm |
Width |
207 mm |