Cisco IP Phone 7821

Cost-Effective, Simple Voice Collaboration

The IP Phone 7821 delivers easy-to-use, highly secure, and highly cost-effective voice communications for small to large businesses. It is available on-premises and hosted from Cisco and on third-party hosted call control platforms. The 7821 is a two-line endpoint that is ideal for occasional-to-light voice communications needs of knowledge workers and managers.


Video Data Sheet

Enhance collaboration with the Cisco IP Phone 7800 Series. (6:40 min)

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Features and Capabilities

The Cisco IP Phone 7821 can be used to meet the needs of both information workers and managers who have occasional-to-light voice communications requirements.

Key features and capabilities, which enhance user experience and IT administration include:

User Experience Enhancing Collaboration

  • Two-lines deliver more efficient call handling for occasional-to-light user needs
  • High-resolution graphical grayscale display makes viewing easier at a glance
  • Dedicated fixed keys1 ease communications for increased productivity
  • A built-in speakerphone offers choice with hands-free communications
  • Wideband audio enhances clarity when using a handset, speaker, and headset

Simple, Cost-Effective Administration

Key features to ease and reduce costs of administration include:

  • On-premise and hosted Cisco and third-party hosted call control platforms2 for deployment flexibility
  • Cisco Expressway supports remote worker single sign-on access without a VPN3 client
  • Power over Ethernet (PoE) Class 1 and Cisco EnergyWise to help reduce energy costs
  • Integrated IEEE 10/100 switch to reduce installation costs and footprint at the desk
  • Wall-mount option for common areas, such as aisles or hallways or where desk space is limited

1Includes messaging, directory, speaker, and a two-way navigation button

2Telephony features may vary by vendor platform. Consult your Cisco representative for further details.

3Virtual Private Network

Specifications at a Glance

Attribute Specification


384 x 106 pixel (3.28 in. / 83.3 mm)

Ethernet switch


Programmable line keys


Full duplex speakerphone

Yes (wideband)

Wideband audio


PoE class


Replaceable bezel

Silver as option


Using the 7800 Series IP Phone

Learn the features and functionality of your 7800 Series phone. (22.47 min)

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Pick the Right Collaboration Tool

Improve team performance and IT investment value with Cisco IP Phones (PDF - 4MB)

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