Cisco 7821 IP phone

Cisco 7821 IP Phone

Cisco 7821 IP Phone

Cisco 7821 IP Phone is very easy-to-use, highly secure, and highly cost-effective voice communications for small to large businesses. The Cisco IP Phone 7821 is supported on Cisco on-premises, hosted, Webex Calling and third-party call control offer flexible deployment options*.

The Cisco IP Phone 7821 is designed for small to large businesses. It delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience on Cisco on-premises and hosted infrastructure platforms and third-party hosted call control.

Features and Capabilities

Cisco 7821 IP phone

Meet the needs of both information workers and managers who have occasional-to-light voice communications requirements with the Cisco IP Phone 7821. Key features and capabilities, which enhance user experience and IT administration include:

User Experience Enhancing Collaboration


  • Two-lines deliver more efficient call handling
  • The high-resolution graphical grayscale display makes viewing easier
  • Dedicated fixed keys* ease communications for increased productivity
  • Built-in speakerphone supports hands-free communications
  • Wideband audio enhances clarity with the handset, speaker, or a headset

Best, Simple, Cost-Effective Administration


Key features to ease and reduce costs of administration include:

  • Flexible deployment options with Cisco on-premises hosted, and Webex Calling.***
  • Cisco Expressway supports remote worker single sign-on access without a VPN client
  • Power over Ethernet (PoE) Class 1 and Cisco Energy Wise lowers energy costs
  • Integrated IEEE 10/100 switch reduces installation costs and footprint at the desk
  • Cisco Webex Phone OS consolidates administration with common software to both the IP Phone 7800 Series and IP Phone 8800 Series

*Includes messaging, directory, speaker, and a two-way navigation button

**Telephony features may vary by vendor platform. Contact your Cisco representative for supported platforms.

Cisco 7821 IP phone

Specifications at a Glance


Attribute Specification
Screen 396 x 162 pixel (3.5 in. / 89 mm)
Ethernet switch 10/100
Programmable line keys 2
Full duplex speakerphone Yes (wideband)
Wideband audio Standard
PoE class 1
Replaceable bezel Silver as an option

The Cisco IP Phone 7800 Series

Cisco 7821 IP phone

The Cisco IP Phones 7811, 7821, 7841, and 7861 deliver easy-to-use, highly-secure voice communications.

The Cisco IP Phone 7800 Series

More Specifications about Cisco 7821 IP Phone


Humidity Range – Storage: 10% to 95%, non-condensing
Programmable Line Keys: 2
Composition: Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic
Wideband Audio: Standard
Full Duplex Speakerphone: Yes (Wideband)
Screen: White backlit, 384 x 106 pixel (3.28 in. / 83.3 mm)
Power-Save Option: Standard
Dimensions: 1.91 lbs (867 g)
PoE Class: 1
Weight: 8.2 x 8.1 x 1.10 inches (20.7 x 20.6 x 2.8 cm) excluding foot stand
Humidity Range – Operating: 10% to 90%, non-condensing
Standard Colors: Charcoal, White
Replaceable Bezel: Black (standard); Silver (optional)
Operating Temperature : 32 to 104 F (0 to 40 C)
Ethernet Switch: 10/100
Foot Stand: 2 Position; 30 and 45 degrees
Storage Temperature: 14 to 140 F (-10 to 60 C)