CP-7821/K9
CP-7821/K9= Features and Capabilities
Meet the needs of both information workers and managers who have occasional-to-light voice communications requirements with the Cisco IP Phone.
Key features and capabilities, which enhance user experience and IT administration include:
User Experience Enhancing Collaboration
- Two-lines deliver more efficient call handling
- 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
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 EnergyWise 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
Product specifications for the Cisco CP-7821/K9 IP Phone:
Feature | Specification |
Audio Features | Automatic Gain Control, Noise Reduction, Echo Cancellation, Comfort Noise Suppression |
Signaling Protocol | Session Initiation Protocol (SIP) |
Codecs | G.711a/μ, G.722, G.729a/b, iLBC, OPUS |
Display | 3.5 inches (396 x 162 pixels) greyscale LCD |
Ethernet Switch | 10/100BASE-T with dual RJ-45 ports |
Programmable Keys | 2 line keys with configurable options |
Power Options | IEEE 802.3af PoE Class 1; optional AC adapter available |
Physical Dimensions | 207 x 206 x 28 mm (excluding foot stand) |
Weight | 867 g |
Key Call Features | Call forward, call waiting, conferencing, voicemail, hold/resume, speed dial, etc. |
Language Support | Multiple languages including English, French, Spanish, Chinese, and more |
Security | TLS, SRTP, 802.1X authentication, encrypted configuration files |
Operating Conditions | Temperature: 32–104°F (0–40°C), Humidity: 10–90% (non-condensing) |
Certifications | CE Markings, UL 60950, EN55022 Class B, FCC Part 68 HAC |
The Cisco CP-7821/K9 IP Phone is an affordable yet robust option for businesses of varying sizes, offering essential telephony features in a user-friendly package. This phone is part of the Cisco 7800 series, designed for cost-effective communication without compromising on quality.
Strengths:
- Ease of Use: Its intuitive interface and two-line keys make it simple to manage calls, especially for users who do not require extensive multi-line functionality.
- Audio Quality: The wideband audio support ensures clear, professional-grade sound, complemented by features like Acoustic Echo Cancellation and Dynamic Noise Reduction.
- Energy Efficiency: As a PoE (Power over Ethernet) Class 1 device, it consumes minimal power, reducing operational costs.
- Durability and Security: The phone meets stringent security standards, offering features like Secure Real-Time Transfer Protocol (SRTP) and Transport Layer Security (TLS).
- Customizable Options: The ability to adjust volume, ring tones, and display contrast makes it adaptable to different user preferences.
- Language Support: With a broad range of supported languages, the CP-7821 is well-suited for global use.
Limitations:
- Limited Features for Advanced Users: With only two programmable line keys, it may not suffice for users managing high call volumes or complex call routing.
- Ethernet Port Speed: The 10/100 Ethernet switch may not meet the expectations of users seeking gigabit connectivity.
- Display: While functional, the greyscale LCD screen may seem outdated compared to color displays on newer models.
Ideal Users:
The CP-7821 is perfect for small to medium-sized businesses and shared workspace environments. Receptionists, call center agents, and office staff handling moderate call volumes will find it especially appealing.
Its simplicity and affordability also make it an excellent choice for educational institutions, healthcare providers, and retail businesses looking for cost-effective communication solutions. However, users requiring advanced features or larger displays may prefer other models in the Cisco 7800 series.