Description
Cisco IP Phone 7821
The Cisco 7821 IP phone includes a 2-way navigation button and dedicated fixed keys for commonly used office call needs like conference, messaging, and directory. Full wideband audio (G.722) supplies superior voice quality performance through the handset, speakerphone, and third party headsets. The 8721 has added electronic hookswitch control for flexibility in managing calls and extending mobility around the office.The 7821 can be PoE or powered by an AC power adapter, and desk mount or wall mount functionality allows this IP phone to be used for many different business environments.
The 7821 can be PoE or powered by an AC power adapter, and desk mount or wall mount functionality allows this IP phone to be used for many different business environments.
| Technical Details | |
| Integrated Voice Mail | Yes |
| Adjusting the volume | Digital |
| Type of headphones | Wired |
| Case Material | Polycarbonate |
| Integrated Answering Machine | Yes |
| Speaker | Yes |
| Display | |
| Diagonal screen size (inch) | 3.5 “ |
| Resolution | 396 x 162 pixels |
| Touch sensitive screen | Not |
| Connection parameters | |
| Number of lines | 2 |
| The ability to forward calls | Yes |
| Speed Dial | Yes |
| Name and Caller ID | Yes |
| Conference call capability | Yes |
| Call Waiting | Yes |
| Call on hold | Yes |
| Audio | |
| Voice Codecs | G.711a, G.722, G.729A, G.729B, iLBC |
| Networking | |
| Bluetooth | Not |
| Wi-Fi | Not |
| Supported network protocols | IEEE 802.3, IEEE 802.3u, IEEE 802.3af |
| Wired Ethernet LAN | Yes |
| Service quality of service (QoS) | Yes |
| Protection | |
| Encryption / Security | 802.1x RADIUS |
| Communication | |
| Ethernet LAN (RJ-45) | 2 |
| Power Management | |
| PoE support | Yes |
| Weight & dimensions | |
| Width | 207 mm |
| Depth | 206 mm |
| Height | 28 mm |
| Weight | 867 g |
| External conditions | |
| Relative humidity range | 10 – 90% |
| Relative humidity | 10 – 95% |
| Temperature range (operation) | 0 – 40 ° C |
| Temperature range (storage) | -10 – 60 ° C |
| Color | |
| Color | Black |
| Ergonomics | |
| Wall mount / ceiling projection on | Yes |
| Certificates | |
| Safety | UL 60950, CAN / CSA – C22.2, EN 60950, IEC 60950, AS / NZS 60950, GB4943 |
