CP-8811-K9 Cisco IP Phone 8811, Charcoal

Cisco CP-8811-K9 - IP Phone 8811 Overview

The Cisco IP Phone 8811 is part of the Cisco 8800 Series, which delivers enterprise-class collaboration endpoints. It balances cost-effectiveness with advanced features, making it a popular choice for mid-range deployments.

🔧 Key Specifications

• Lines Supported: 5 programmable lines
• Display:
  • 5-inch (800x480 pixel) widescreen grayscale display
  • Non-backlit, but high-resolution for clear text/icons
• Audio:
  • Wideband audio (G.722 codec support)
  • Full-duplex speakerphone
  • Headset support (RJ-9 and EHS options)
• Connectivity:
  • 2x 10/100/1000 Gigabit Ethernet ports (switch + PC passthrough)
  • Power over Ethernet (PoE) Class 2 support
  • Optional external power adapter if PoE not available
• User Interface:
  • 5 programmable line/feature keys
  • Fixed feature keys (hold, transfer, conference, voicemail, etc.)
  • Four-way navigation cluster
• Security:
  • Secure boot and image authentication
  • TLS/SRTP for signaling and media encryption
• Deployment Options:
  • Cisco Unified Communications Manager (CUCM)
  • Cisco Hosted Collaboration Solution (HCS)
  • Cisco Webex Calling
  • Third-party call control (with multiplatform firmware option, sold separately)

🧩 Ideal Use Cases

• Knowledge workers and managers with moderate to heavy call volumes
• Remote workers needing enterprise-grade desk phones
• Shared workspaces where multiple lines/extensions are required
• Organizations standardizing on Cisco Unified Communications or Webex Calling