Cisco
Cisco 7821 IP Phone
Deploy reliable and highly secure voice communications with the Cisco IP Phone 7821. This full-featured phone is designed for ease of use and budget-friendliness. It supports wideband audio for superior voice quality and advanced IP telephony features to enhance business call efficiency and productivity. The phone includes dedicated fixed keys for common functions, electronic hookswitch control for headset flexibility, and an integrated IEEE 10/100 switch to support co-located PC traffic. It is a Power over Ethernet (PoE) Class 1 endpoint that supports Cisco EnergyWise to help manage energy costs.
$74.88
More Cisco IP Phone 7800 Series Options
Owner Satisfaction
4.1
/ 5
Category Rank
179
/ 251
#179 in Corded Phones
Price vs Category Average
-28%
Below average
Lines
2
Who it's for
- Cost-Effective Entry Point
- Seamless Cisco Integration
- PoE Support
Who should skip it
- Monochrome, Non-Backlit Display
- Limited Line Capacity
- No Integrated Ethernet Switch
Key Specs
Lines
2
Connectivity
Corded, SIP, SRTP
PoE
Class 1
Network Ports
2
Form Factor
Wall Mountable, Desktop
Warranty
12 months
Display
3.5 inch monochrome LCD
Features
- Dedicated fixed keys for conference, messaging, and directory
- Two-way navigation button
- Full wideband audio performance for handset, headset, and speakerphone
- Electronic hookswitch control for third-party headsets
- Power over Ethernet (PoE) Class 1 endpoint
- Cisco EnergyWise support
- Field-replaceable bezel option
- Integrated IEEE 10/100 switch for co-located PC traffic
- Wall-mount option for limited desk space
- Secure communication with SRTP support
What customers say
The Cisco 7821 IP Phone is widely regarded as a reliable and cost-effective workhorse, praised primarily for its exceptional voice quality and durable build. Users consistently highlight the clear wideband audio, making it excellent for daily business communication. Its Power over Ethernet support simplifies large-scale IT deployment. However, the main drawback centers on the user interface. Many find the monochrome, nonbacklit screen dated and difficult to read. Furthermore, the two-line capacity and limited programmable buttons frustrate power users. Despite these functional limitations, the 7821 offers excellent value as a dependable, high-quality audio endpoint for basic needs.
Know before you buy
The Cisco 7821 is a Power over Ethernet (PoE) Class 1 device, meaning it can draw power directly from your network switch via an Ethernet cable. If your network infrastructure does not support PoE, you will need to purchase a separate power supply unit.
Yes. The phone features an integrated IEEE 10/100 switch, allowing you to connect your PC directly to the phone. This setup uses a single wall jack to provide network connectivity for both devices.
Yes, the 7821 supports electronic hookswitch (EHS) control, which allows for seamless integration with many third-party headsets. This feature enables you to answer and end calls directly from the headset controls.
Yes, the phone is designed to be wall-mountable, making it a great choice for areas with limited desk space or common office environments.
Yes, the phone supports Secure Real-time Transport Protocol (SRTP) to ensure your voice communications remain encrypted and secure.
The Cisco 7821 is designed to support up to two lines, making it well-suited for individual users or standard office workstations.
Still have a question?
Ask Hayley anything about this product before you decide.