Cisco IP Phone 8851 (CP-8851-K9) — Enterprise-Grade VoIP for CUCM
Save up to 70% over new with this professionally refurbished Cisco 8851 IP Phone, backed by Reef Telecom's industry-leading 10-year warranty. The CP-8851-K9 delivers high-fidelity wideband audio, a vibrant 5-inch color display, and robust enterprise features — ideal for businesses expanding or upgrading their Cisco Unified Communications Manager (CUCM) deployment.
Key Specifications
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Display: 5-inch WVGA (800 x 480) backlit color display
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Lines: 5 programmable line/feature keys
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Audio: Full-duplex wideband speakerphone with HD voice
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Connectivity: Dual Gigabit Ethernet (10/100/1000) with PC passthrough
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Bluetooth: Built-in Bluetooth 3.0 EDR for wireless headsets
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USB: Side USB port for headsets or device charging
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Headset: RJ9 headset port + EHS-compatible AUX port
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PoE: IEEE 802.3af Class 3 (power adapter sold separately)
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Security: Secure boot, TLS, SRTP, encrypted voice communications
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Wall Mount: Optional with CP-8800-WMK= kit
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Expansion: Supports CP-BEKEM= and CP-8800-A-KEM= key expansion modules
Compatibility
This CP-8851-K9 firmware is designed exclusively for Cisco Unified Communications Manager (CUCM) version 8.6.2 and later, Cisco Business Edition 6000, and Cisco Hosted Collaboration Solution. Not compatible with third-party SIP platforms such as RingCentral, Vonage, or Zoom — for those platforms, see our Cisco 3PCC / MPP phones.
What's Included
- Cisco CP-8851-K9 IP Phone (refurbished to like-new condition)
- Standard handset with cord
- 10-year Reef Telecom warranty
Every Cisco 8851 is thoroughly inspected, tested, and cleaned before shipping. Upgrade your enterprise phone system with confidence — Reef Telecom has you covered.
