Cisco
Cisco CP-8851-K9 IP Phone 8851 5-Line Gigabit Color Display for CUCM
PO and Net 30 accepted for schools, government and healthcare.
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Power: —
How will you power this phone?
Most desk phones run on Power over Ethernet (PoE). If your switch or injector provides PoE, you need nothing else. No PoE? Add the power supply made for this phone.
We don't stock this phone's power supply online yet — if you don't have PoE, check out as-is and we'll confirm power with you before it ships.
Blind shipping available — your address on the label, no Reef-branded paperwork in the box. Choose it in your cart. How it works
Every Reef phone already includes our free 10-year warranty with advance replacement. Reef Support adds the people: expert Cisco engineers on call, a guaranteed response time, and onsite dispatch when a phone goes down.
Response time
Term
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Coverage activates once we register your serial number(s) — we'll email you a secure form right after checkout. Buying for a tax-exempt organization? Your exemption carries over at checkout.
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.
Description
Description
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
- Display: 5-inch WVGA (800 x 480) backlit color display
- Lines: 5 programmable line/feature keys
- Audio: Full-duplex wideband speakerphone with HD voice
- Connectivity: Dual Gigabit Ethernet (10/100/1000) with PC passthrough
- Bluetooth: Built-in Bluetooth 3.0 EDR for wireless headsets
- USB: Side USB port for headsets or device charging
- Headset: RJ9 headset port + EHS-compatible AUX port
- PoE: IEEE 802.3af Class 3 (power adapter sold separately)
- Security: Secure boot, TLS, SRTP, encrypted voice communications
- Wall Mount: Optional with CP-8800-WMK= kit
- 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.
Specs & Details
Specs & Details
- Condition
- Certified Refurbished
- Warranty
- 10-Year Reef Telecom Warranty
- Manufacturer Part Number
- CP-8851-K9
- Reef SKU
- CP-8851-K9-R
- UPC
- 882658698422
- Brand
- Cisco
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300 (contiguous US). Same-day shipping on orders placed before 4 PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.
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