Cisco
Cisco 8851 IP Phone 5-Line Color Display Gigabit Bluetooth TAA CP-8851-K9++
PO and Net 30 available for schools, government, hospitals, and law firms.
Description
Description
Cisco IP Phone 8851 TAA Compliant (CP-8851-K9++) — Enterprise VoIP Communication
Save on the Cisco 8851 IP Phone with Reef Telecom's industry-leading 10-year warranty. This business-class VoIP endpoint delivers high-fidelity, secure, and scalable voice communications with Cisco Intelligent Proximity integration for personal mobile devices — ideal for midsize to large enterprise deployments on Cisco Unified Communications Manager (CUCM).
Key Features
- 5-Inch Color Display: 800 x 480 WVGA backlit 24-bit color screen for intuitive call management
- 5 Programmable Line Keys: Support multiple directory numbers, speed dial, or calling features
- Dual Gigabit Ethernet Ports: 10/100/1000 switch with PC passthrough (IEEE 802.3af/at PoE)
- Bluetooth 3.0 EDR: Wireless headset connectivity up to 30 ft range
- Wideband HD Audio: Full-duplex speakerphone with echo cancellation for crystal-clear calls
- USB Port: For wired headsets, accessories, or 500mA smartphone charging
- Cisco Intelligent Proximity: Seamlessly integrates mobile device audio with your desk phone
- TAA Compliant: Meets Trade Agreements Act requirements for U.S. government procurement
- EnergyWise & Energy Star: Eco-friendly power management reduces operating costs
Technical Specifications
- Part Number: CP-8851-K9++
- Protocol: SIP
- Lines: 5
- Display: 5" WVGA 800x480 color
- Ethernet: 2x 10/100/1000 Gigabit
- PoE: 802.3af/at Class 2
- Bluetooth: 3.0 EDR Class 1
- Ports: 1x USB, 1x RJ9 headset, 1x AUX (EHS)
- Wall Mountable: Yes (optional CP-8800-WMK= kit)
- Expansion: Supports Cisco 8800 Key Expansion Modules (up to 2)
- Power: PoE or optional PWR-CUBE-4 (sold separately)
Compatibility
Designed for use with Cisco Unified Communications Manager (CUCM) 8.5.1 and later, Cisco Business Edition 6000, and Cisco Hosted Collaboration Solution. Requires an Enhanced User Connect License (UCL). Not compatible with third-party SIP platforms — for third-party use, see the Cisco 8851 3PCC/MPP model (CP-8851-3PCC-K9).
What's in the Box
- Cisco 8851 IP Phone (CP-8851-K9++)
- Handset with cord
- Dual-position foot stand
- Ethernet cable
- Quick start guide
Why Reef Telecom? Every new Cisco phone ships with our exclusive 10-year warranty, expert technical support, and fast shipping. Bulk pricing available — contact us for volume quotes.
Specs & Details
Specs & Details
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.

We clean up after ourselves.
Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.
Every delivery’s carbon footprint is calculated based on weight, shipping method, and distance traveled. We neutralize these emissions by purchasing verified carbon removal credits from groundbreaking projects.
With your purchase, you’ll join a community of proactive merchants and customers dedicated to a sustainable future. Together, we've removed emissions for over 80 million deliveries and removed over 56 thousand tonnes of carbon.
We work with a network of pioneering carbon removal companies that have been vetted by the commerce platform Shopify.
Reef Telecom Proudly Supports
-
Ocearch
2026 Monthly Shark Hero -
Coral Restoration Foundation
2025 Staghorn Donor -
Ocean Conservancy
2025 Donor
Smart IT. Clean Oceans. Boundless Possibilities.
Our goal is providing the highest quality refurbished equipment to promote environmentally-conscious equipment usage through it's lifecycle.