Increase Productivity with Clear CommunicationsDeploy 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 ExperienceTo 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 AdministrationThe 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
| Display |
| Touchscreen | No |
| Display diagonal | 8.89 cm (3.5") |
| Display resolution | 396 x 162 pixels |
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| Audio |
| Speakerphone | Yes |
| Voice codecs | G.711a, G.722, G.729A, G.729B, iLBC |
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| Ports & interfaces |
| Ethernet LAN (RJ-45) ports | 2 |
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| Weight & dimensions |
| Width | 207 mm |
| Depth | 206 mm |
| Height | 28 mm |
| Weight | 867 g |
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| Power |
| Power over Ethernet (PoE) | Yes |
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| 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 |
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| Network |
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Bluetooth | No |
| Supported network protocols | IEEE 802.3, IEEE 802.3u, IEEE 802.3af |
| Quality of Service (QoS) support | Yes |
| Security algorithms | 802.1x RADIUS |
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| Phone features |
| Lines quantity | 2 lines |
| Caller ID | Yes |
| Answering machine | Yes |
| Call waiting | Yes |
| Speed dialling | Yes |
| Call hold | Yes |
| Call forwarding | Yes |
| Conference call | Yes |
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| Certificates |
| Safety | UL 60950, CAN/CSA - C22.2, EN 60950, IEC 60950, AS/NZS 60950, GB4943 |
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| Management features |
| Integrated voicemail | Yes |
| Volume control | Digital |
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| Design |
| Product type | IP Phone |
| Product colour | Black, Silver |
| Handset type | Wired handset |
| Case material | Polycarbonate |
| Wall mountable | Yes |
| Mounting | Desk/Wall |
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| Logistics data |
| Harmonized System (HS) code | 85171800 |
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