CP-7841-3PCC-K9 Cisco VoIP Phone

Cisco CP-7841-3PCC-K9 - Multiplatform IP Phone

The 3PCC suffix indicates that this phone ships with multiplatform firmware (MPP), making it compatible with third-party SIP call control systems. This makes it popular for service providers, hosted VoIP, and UCaaS deployments where Cisco Unified CM is not used.

🔧 Key Specifications

• Lines Supported: 4 programmable lines
• Display:
  • 3.5-inch (384x106 pixel) grayscale display
  • Backlit for visibility in all lighting conditions
• 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 1 support
  • Optional external power adapter if PoE not available
• User Interface:
  • Four 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
• Firmware:
  • 3PCC multiplatform firmware (open SIP)
  • Compatible with BroadSoft, Asterisk, Metaswitch, Webex Calling, and other SIP-based UCaaS

🧩 Ideal Use Cases

• Hosted VoIP / UCaaS deployments using BroadSoft, Asterisk, or Metaswitch
• Webex Calling (MPP firmware) deployments
• Small to medium businesses needing a reliable, mid-range SIP phone
• Knowledge workers and managers with moderate call volumes