Cisco CP-6851-3PCC-K9= 6851 IP Phone - 4 SIP Lines - 3-Way Conferencing - 3. 5" Screen - PoE - Charcoal
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Product Features
Technical Overview
Built on VoIP technology, the Cisco 6851 ensures crystal-clear voice transmission over IP networks. It includes two RJ-45 Ethernet ports, with one supporting Power over Ethernet for simplified installation that eliminates the need for a separate power adapter. The phone supports three-way conferencing, allowing small team meetings directly from the handset.
Audio features include a full-duplex speakerphone and caller ID display. The device meets Energy Star compliance for reduced power consumption and carries a one-year limited warranty. Environmental compliance includes adherence to the Waste Electrical and Electronic Equipment Directive.
This section brings together practical product details such as IP Phone Technology, Base Unit Connectivity Technology, Total Number of Phone Lines, Screen Size, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
The Cisco 6851 combines essential business telephony features with straightforward deployment. Its dual Ethernet ports allow daisy-chaining to a computer or other network device, reducing cable clutter. PoE support streamlines installation by delivering both power and data over a single network cable.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Enhanced Call Management, Deployment Flexibility.
Enhanced Call Management
Four SIP lines enable handling multiple calls simultaneously, improving responsiveness in high-volume environments.
- 3-way conferencing for quick team discussions
- Caller ID for informed call screening
Deployment Flexibility
The phone accommodates various office setups with desktop and wall-mount options.
- Charcoal color suits professional settings
- Compact footprint conserves desk space
Deployment / Use Cases
The Cisco 6851 is well-suited for general office environments where reliable voice communication is critical. Its four-line capacity makes it ideal for reception desks, administrative assistants, or small team leaders who manage multiple incoming lines.
In educational or healthcare settings, the phone's wall-mount capability allows installation in corridors, nursing stations, or classrooms where desk space is limited. The PoE feature simplifies deployment in new construction or retrofit projects by reducing electrical outlet requirements.
This section brings together practical product details such as IP Phone Technology, Base Unit Connectivity Technology, Total Number of Phone Lines, Screen Size, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Office Desks
Provides clear voice quality and easy call handling for daily business communications.
Shared Spaces
Wall mounting in common areas offers accessible communication without consuming valuable surface area.
Physical Profile
The Cisco 6851 features a charcoal gray finish that resists fingerprints and maintains a clean appearance. Its dimensions of 10.40 inches wide by 8.20 inches high by 1.30 inches deep create a substantial yet space-efficient footprint. The included stand provides a stable desktop base, while integrated keyholes enable secure wall mounting.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 8.20" (208.28 mm), 10.40" (264.16 mm), 1.30" (33.02 mm), 1.36 lb (615 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 10.40" (264.16 mm)
- Depth
- 1.30" (33.02 mm)
- Height
- 8.20" (208.28 mm)
- Weight
- 1.36 lb (615 g)
Highlights
- 4 SIP lines for handling multiple concurrent calls
- 3-way conferencing enables small team meetings
- 3.5-inch screen displays caller ID and call information
- Power over Ethernet support simplifies installation
- Dual RJ-45 ports allow daisy-chaining to computers
- Full-duplex speakerphone for hands-free conversations
- Charcoal finish blends with office environments
- Wall-mountable design for flexible deployment
- Energy Star compliant for reduced power usage
- One-year limited warranty for peace of mind
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | CP-6851-3PCC-K9= |
| Brand Name | Cisco |
| Product Series | 6800 |
| Product Model | 6851 |
| Product Name | 6851 IP Phone |
| Product Type | IP Phone |
| Technical Information | |
| IP Phone Technology | VoIP |
| Base Unit Connectivity Technology | Corded |
| Total Number of Phone Lines | 4 |
| Multiple Conferencing | 3 |
| Caller ID | Yes |
| Speakerphone | Yes |
| Display & Graphics | |
| Screen Size | 3.5" |
| Interfaces/Ports | |
| Network (RJ-45) | Yes |
| Number of Network (RJ-45) Ports | 2 |
| PoE (RJ-45) Port | Yes |
| Physical Characteristics | |
| Color Family | Gray |
| Product Color | Charcoal |
| Form Factor | Wall Mountable,Desktop |
| Height | 8.20" (208.28 mm) |
| Width | 10.40" (264.16 mm) |
| Depth | 1.30" (33.02 mm) |
| Weight (Approximate) | 1.36 lb (615 g) |
| Miscellaneous | |
| Energy Star | Yes |
| Country of Origin | China |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 1 Year |
User Manual
FAQ
How many simultaneous calls can this IP phone handle?
The Cisco 6851 supports up to four SIP lines, allowing four simultaneous calls. This capacity enables handling multiple incoming calls, placing calls on hold, or managing conference setups without dropping connections.
Does this phone require a separate power adapter?
No separate power adapter is needed when using Power over Ethernet. The phone receives both data and electrical power through a single Ethernet cable from a PoE switch or injector, simplifying installation and reducing cable clutter.
Can this phone be mounted on a wall?
Yes, the Cisco 6851 is designed for both desktop and wall mounting. The rear housing includes keyhole slots for secure wall attachment, making it suitable for corridors, nursing stations, or other areas where desk space is limited.
What is the screen size and what information does it display?
The phone features a 3.5-inch screen that shows caller ID, call history, date and time, configuration menus, and status information. The display provides clear visual feedback for call management and phone settings.
How many Ethernet ports does this phone have?
There are two RJ-45 Ethernet ports. One port connects to the network, while the second port allows daisy-chaining to a computer or other network device, reducing the need for additional network switches at the desk.
What warranty comes with this IP phone?
Cisco provides a one-year limited warranty covering defects in materials and workmanship. The phone also complies with the Waste Electrical and Electronic Equipment Directive for responsible end-of-life handling.
How many SIP lines or accounts does this phone support?
The listed telephony detail is 4, which helps buyers confirm deployment fit for desk-phone and unified-communications environments.
Does this model support PoE?
The listed telephony detail is Yes, which helps buyers confirm deployment fit for desk-phone and unified-communications environments.
| Qty | Price | Available |
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