- Brand: Cisco
- Model: IP Phone 7821
- Product Line: Cisco IP Phone
- Manufacturer: Cisco Systems
Network & Communication
- IP Address Configuration: DHCP, Static
- Network Ports: 2 x Ethernet 10/100 Mbps
- Protocols Supported: Cisco Discovery Protocol (CDP), SRTP
- Network Features: LDAP support
Connectivity
- Audio Connections: Headset jack
Display
- Type: Backlit LCD (monochrome)
- Size: 3.5 inches (8.9 cm)
- Resolution: 396 x 162 pixels
- Languages Supported: Arabic, Chinese, English, French, German, Japanese, Spanish, and many more
- Display Position: Base-mounted
Technical Specifications
- Compatible Platforms: Cisco Business Edition 6000
- Indicators: Speakerphone, Headset, Voicemail waiting
- Conferencing: Multiple-party conferencing supported
- Speakerphone: Yes
- Voice Codecs: G.711a/u, G.722, G.729ab, iLBC
Phone Features
- Additional Functions: Call timer
- Call Services: Voicemail, Caller ID, Call Waiting, Hold, Forwarding, Transfer
- Compatible Software: Cisco Unified Communications Manager 8.5.1+, Cisco HCS
- Lines Supported: 2
- Programmable Buttons: 2
- VoIP Support: Yes (SIP, SRTP protocols)
- Integrated Switch: Yes
- PoE Support: Yes
- Quality of Service: IEEE 802.1p, 802.1Q (VLAN tagging)
- Security: IEEE 802.1X
- Mounting Options: Desktop or wall-mountable
- Form Factor: Base-mounted dialer
Dimensions & Weight
- Width: 8.1 in
- Height: 8.1 in
- Depth: 1.1 in
- Weight: 30.6 oz
Physical Characteristics
- Material: PC/ABS plastic
- Color: Black
Certifications
- ENERGY STAR: No
- EPEAT/TCO Certified: No
