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Cisco CP-8851-K9 IP Phone 8851
The Cisco CP-8851-K9 IP Phone is a business-class VoIP phone designed for reliable, high-quality enterprise communication. It features a 5-inch widescreen color display, five programmable line keys, Gigabit Ethernet, wideband audio, Bluetooth, USB connectivity, and Power over Ethernet (PoE). It is an excellent choice for offices, businesses, call centers, and enterprise communication systems.
Product Warranty: 90 Days
Condition: Used and 100% Tested
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Product Description
Upgrade your business communication with the Cisco CP-8851-K9 Cisco IP Phone, a professional enterprise VoIP phone built for clear, reliable, and flexible voice communication.
The Cisco IP Phone 8851 combines an ergonomic design with high-quality wideband audio and a 5-inch high-resolution widescreen color display. Its five programmable line keys can be configured for directory numbers, speed dial, or other calling features, making it practical for busy business users.
The CP-8851-K9 includes an integrated 10/100/1000 Gigabit Ethernet switch, allowing a computer and IP phone to share a network connection. It also supports IEEE 802.3af/802.3at Power over Ethernet, helping simplify installation where compatible PoE network infrastructure is available.
Key Features of Cisco CP-8851-K9
- Cisco IP Phone 8851 in charcoal
- 5-inch 800 × 480 widescreen VGA color display
- Five programmable line and feature keys
- Full-duplex speakerphone
- Wideband audio support
- Integrated 10/100/1000 Gigabit Ethernet switch
- Bluetooth connectivity
- USB connectivity for compatible headsets and smartphone charging
- RJ-9 headset and handset connectivity
- IEEE 802.3af/802.3at PoE support
- Cisco Intelligent Proximity for compatible mobile-device integration
- Support for optional Cisco IP Phone 8800 Key Expansion Modules
- Wall-mount option with optional mounting kit
- Enterprise-grade security features
- Support for IPv4 and IPv6
- SIP signaling support
- QoS and VLAN capabilities
Clear and Professional Voice Communication
The Cisco 8851 provides wideband audio and a full-duplex speakerphone for clear business conversations. Audio technologies include acoustic echo cancellation, dynamic noise reduction, automatic gain control, and other voice-quality features.
Easy Network Integration
The built-in Gigabit Ethernet switch provides 10/100/1000BASE-T connectivity and can support a co-located PC through the phone. VLAN capabilities can help administrators separate voice and data traffic on compatible network configurations.
Flexible Headset and Mobile Connectivity
The CP-8851-K9 supports compatible wired and wireless headset options through its RJ-9, USB, auxiliary, and Bluetooth capabilities. Cisco Intelligent Proximity can also integrate compatible mobile devices with the phone for supported functions such as call audio and contact synchronization.
Expandable for Busy Users
Businesses requiring additional programmable buttons can use optional Cisco IP Phone 8800 Key Expansion Modules. Cisco documentation states that the 8851 supports up to two optional expansion modules, depending on the applicable configuration and power arrangement.
Important Compatibility Note
Before purchasing, confirm that the CP-8851-K9 is compatible with your existing Cisco call-control platform, firmware, licensing, network configuration, and deployment requirements. Cisco documentation notes support for Cisco Unified Communications Manager and other supported platforms, with licensing requirements applying to certain deployments.
Why Buy Cisco CP-8851-K9?
The Cisco 8851 is a strong option for organizations looking for a professional business IP phone with:
- Reliable enterprise VoIP communication
- High-quality wideband audio
- Gigabit Ethernet connectivity
- PoE installation
- Bluetooth and USB connectivity
- Programmable line keys
- Mobile-device integration
- Optional key expansion
- Enterprise security and network features
Ideal For
The Cisco CP-8851-K9 is suitable for:
- Corporate offices
- Small and medium businesses
- Enterprise offices
- Reception desks
- Executive offices
- Call centers
- IT departments
- Cisco VoIP deployments
- Business communication systems
FAQs
1. What is the Cisco CP-8851-K9?
The CP-8851-K9 is the charcoal version of the Cisco IP Phone 8851, a business-class VoIP phone designed for enterprise voice communication.
2. Does the Cisco CP-8851-K9 support Power over Ethernet?
Yes. The Cisco IP Phone 8851 supports IEEE 802.3af and 802.3at Power over Ethernet, allowing compatible network infrastructure to provide power to the phone.
3. Does Cisco CP-8851-K9 have Gigabit Ethernet?
Yes. The phone has an integrated 10/100/1000 Ethernet switch, allowing Gigabit Ethernet connectivity and a PC connection through the phone.
4. Does the Cisco 8851 support Bluetooth and USB?
Yes. The Cisco IP Phone 8851 supports Bluetooth and USB connectivity for supported headsets and other functions. Its USB port can also provide power for compatible smartphone charging.
5. Can the Cisco CP-8851-K9 be expanded with additional keys?
Yes. The Cisco 8851 supports optional Cisco IP Phone 8800 Key Expansion Modules. Up to two modules can be supported, subject to the applicable hardware and power configuration.
6. Is CP-8851-K9 suitable for business offices?
Yes. Its programmable line keys, wideband audio, Gigabit Ethernet, PoE, headset connectivity, and enterprise communication features make it suitable for many business and enterprise environments.
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