About the product
The Cisco IP Phone 7800 Series is a cost-effective, high-fidelity voice communications portfolio designed to improve your organization's people-centric communications, while reducing your operating costs.
It combines an attractive new ergonomic design with "always-on" reliability and secure encrypted communications. The Cisco IP Phone 7800 Series delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience.
- Enjoy the internet to its max and get cost-effective voice communication to areas like lobbies, guest rooms, and conference halls
- Enjoy crystal-clear voice calls traveled over the internet with the efficient VoIP technology
- Electrical power and data are transmitted using a single cable to devices such as Access Points, IP cameras or IP phones
Technical Specifications
| Power Description | |
| Input Voltage | 48 V DC |
| Miscellaneous | |
| License Details | User Connect License |
| Country of Origin | Mexico |
| Interfaces/Ports | |
| Number of Network (RJ-45) Ports | 2 |
| Network (RJ-45) | Yes |
| PoE (RJ-45) Port | Yes |
| Display & Graphics | |
| Display Color | Monochrome |
| Screen Resolution | 396 x 162 |
| Screen Size | 3.5" (88.90 mm) |
| Backlight | Yes |
| Management & Protocols | |
| Communication Protocols | SIP |
| SRTP | |
| LDAP | |
| CDP | |
| Quality of Service | 802.1p/q |
| Physical Characteristics | |
| Weight (Approximate) | 1.91 lb (867 g) |
| Form Factor | Wall Mountable |
| Height | 8.15" (207 mm) |
| Width | 8.11" (206 mm) |
| Depth | 1.10" (28 mm) |
| Product Color | Charcoal |
| Color Family | Gray |
| General Information | |
| Product Type | IP Phone |
| Manufacturer Part Number | CP-7821-K9= |
| Manufacturer Website Address | http://www.cisco.com |
| Manufacturer | Cisco Systems, Inc |
| Product Model | 7821 |
| Product Name | IP Phone 7821 |
| Product Series | 7800 |
| Brand Name | Cisco |
| Controls/Indicators | |
| Buttons & Keys Type | Directory |
| Headset | |
| Hold Button | |
| Message | |
| Volume Control | |
| Navigation | |
| Service | |
| Speaker | |
| Transfer/Conference | |
| Mute | |
| Technical Information | |
| Speakerphone | Yes |
| Voice Codec | iLBC |
| G.729ab | |
| G.711a | |
| G.711u | |
| G.722 | |
| Features | Call History |
| Voice Mail | |
| Speed Dial | |
| Music on Hold | |
| Auto-answer | |
| Call Forwarding | |
| Call Waiting | |
| Date and Time | |
| Distinctive Ringing | |
| Do Not Disturb Setting | |
| Indicator | |
| Multilingual Menu | |
| Multiple Ring Tones | |
| IP Phone Technology | VoIP |
| Total Number of Phone Lines | 2 |
| Caller ID | Yes |
| Base Unit Connectivity Technology | Corded |
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