Cisco IP Phone 7841 VoIP Phone SIP 4 Lines

The Cisco 7841 IP Phone from the Cisco 7800 Series is a feature-rich VoIP desktop solution ideal for professionals, administrative staff, and mid-level managers with moderate voice communication needs. It combines enterprise-grade features, cost efficiency, and environmental responsibility, making it suitable for both small and large business deployments.

Designed for ease of use and maximum performance, the 7841 features a clear 3.5-inch grayscale display, intuitive navigation, and four programmable line keys with LED status indicators. Full-duplex wideband audio and integrated echo cancellation ensure crystal-clear voice quality. With SIP protocol support, Power over Ethernet (PoE), and Cisco EnergyWise compliance, it’s built for modern, secure, and sustainable communication.

Product Features

Professional-Grade Communication
Supports up to 4 SIP lines with tri-color LED line indicators, ideal for handling multiple calls and shared lines efficiently.

Clear Display & Easy Navigation
Equipped with a 3.5-inch (396×162 pixels) white backlit grayscale display and a 4-way navigation cluster, ensuring intuitive access to features and menus.

Crystal-Clear Audio
Full-duplex speakerphone, wideband G.722 codec support, and acoustic echo cancellation deliver superior call clarity for productive conversations.

Flexible Connectivity
Dual Gigabit Ethernet ports (10/100/1000 Mbps) support PC pass-through and PoE for reduced cable clutter and simplified power management.

Security & Remote Access
Supports the latest voice encryption standards and Cisco Expressway for secure remote worker access with single sign-on using a one-time PIN.

Energy-Efficient Design
Cisco EnergyWise-compliant architecture, recyclable materials, and low power consumption promote sustainable and cost-effective deployments.

Reliable Feature Set
Includes essential business telephony functions such as call forwarding, call waiting, redial, Do Not Disturb (DND), and local/server-based directories.

Product Specifications

• Model: Cisco CP-7841-K9
• Display: 3.5″ white backlit grayscale screen (396×162 pixels)
• Line Keys: 4 programmable line keys with tri-color LEDs
• Soft Keys: 4 context-sensitive soft keys
• Navigation: 4-way navigation pad with Select button
• Speakerphone: Full-duplex with echo cancellation
• Audio Codecs: G.711a, G.711u, G.729a/b, iLBC, G.722 (wideband)
• VoIP Protocol: SIP
• Headset Support: RJ-9 port
• Ethernet Ports: 2 × 10/100/1000 Mbps RJ-45 ports (1 for LAN, 1 for PC)
• Power: IEEE 802.3af PoE support or optional external AC adapter
• Wall Mountable: Yes, with optional kit
• Call Management: Call transfer, forwarding, redial, DND, call history
• Multilingual Support: Yes
• Security: SRTP, 802.1x
• Dimensions: 20.6 × 18.0 × 15.2 cm (8.1 × 7.1 × 6.0 inches)
• Weight: Approx. 0.95 kg (2.1 lbs)