Cisco 8851-K9 IP Phone
by Cisco
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Display:
- 5-inch (800 x 480 pixels) color LCD display with backlight
- High-resolution display with 16-bit color depth for clear and vibrant visuals
- Adjustable brightness for optimal visibility in varying light conditions
- Four-way navigation pad with select button for easy menu navigation
- Supports customizable wallpapers and screensavers
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Audio Features:
- Wideband audio support for HD voice clarity
- Full-duplex speakerphone with acoustic echo cancellation for clear hands-free calling
- High-definition audio through the handset
- Audio codecs supported: G.711, G.729, G.722, iLBC
- Headset support via RJ-9 port for wired headsets
- Bluetooth support for wireless headset (optional adapter required)
- Dedicated keys for volume control, mute, speakerphone, and headset
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Connectivity:
- Dual Gigabit Ethernet ports (10/100/1000 Mbps) for LAN and PC pass-through
- Power over Ethernet (PoE) support (IEEE 802.3af) for simplified power management
- Optional external power adapter (sold separately) for non-PoE environments
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Functionality:
- Supports up to 5 programmable line keys for managing multiple calls
- 5 context-sensitive soft keys for quick access to on-screen options
- Fixed feature keys for essential functions such as hold, transfer, conference, redial, voicemail, and directories
- Voicemail waiting indicator with visual alert
- Supports multiple lines and call appearances for busy professionals
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Network & Security:
- Protocol support: SIP (Session Initiation Protocol) and SCCP (Skinny Client Control Protocol)
- IPv4/IPv6 dual-stack support for flexible network configuration
- VLAN support for network segmentation
- Quality of Service (QoS): 802.1p, DSCP for prioritizing voice traffic
- Security features: TLS, SRTP, VPN support, 802.1X authentication, encrypted media
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Power:
- Power over Ethernet (PoE) or optional external power adapter (sold separately)
- PoE Class 2 (IEEE 802.3af) for energy-efficient power usage
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Dimensions & Weight:
- Dimensions: 9.4 in. x 7.9 in. x 7.1 in. (240 mm x 201 mm x 180 mm)
- Weight: 2.4 lbs (1.1 kg)
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Operating Environment:
- Operating temperature: 32°F to 104°F (0°C to 40°C)
- Storage temperature: -40°F to 158°F (-40°C to 70°C)
- Humidity: 10% to 90% (non-condensing)
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Compliance:
- RoHS compliant (Reduction of Hazardous Substances)
- Certifications: FCC, CE, UL, and other global regulatory certifications
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Additional Features:
- LDAP directory integration for quick contact look-up
- Personalization options for ring tones, screen savers, and display settings
- Multilingual support for a diverse user base
- Multi-line support to handle several calls simultaneously
- High-quality display with customizable features for easy user interaction
| Model Number | 8851-K9 |
|---|---|
| SKU | 23962 |
Reviews
Description
Cisco 8851-K9 IP Phone
The Cisco 8851-K9 IP Phone is a feature-rich VoIP phone designed for businesses and professionals who require advanced communication capabilities. It is equipped with a 5-inch color LCD display offering 800 x 480 pixels resolution, ensuring sharp, vibrant visuals and easy navigation with the four-way directional navigation pad. The display is backlit and adjustable, making it ideal for use in different lighting environments. Additionally, it supports customizable wallpapers and screensavers to enhance the user experience.
This phone delivers exceptional audio quality with wideband audio support and HD voice clarity, ensuring clear and natural conversations. The full-duplex speakerphone with acoustic echo cancellation allows for hands-free calling without sacrificing audio quality. The phone also supports high-definition audio via the handset and can be used with wired headsets through the RJ-9 headset port or with Bluetooth wireless headsets via an optional adapter.
The Cisco 8851-K9 offers flexible and fast connectivity with dual Gigabit Ethernet ports (10/100/1000 Mbps) for both LAN and PC pass-through, and it supports Power over Ethernet (PoE) for easier installation by eliminating the need for a separate power supply. If PoE is not available, an optional external power adapter can be used.
For functionality, the phone features 5 programmable line keys, 5 context-sensitive soft keys, and fixed keys for essential functions like hold, transfer, conference, and voicemail. It supports multiple lines and call appearances, making it suitable for professionals handling multiple calls at once. The phone also includes a visual voicemail indicator for easy message management.
Designed with security in mind, the Cisco 8851-K9 supports advanced protocols such as TLS for secure signaling, SRTP for encrypted media, and VPN support. It also provides IPv6 and VLAN support for flexible and secure network integration.
The Cisco 8851-K9 IP Phone combines modern features, high-quality audio, and robust security, making it an ideal choice for businesses looking for a reliable, secure, and feature-packed VoIP solution. Whether you need to manage multiple calls, improve team communication, or ensure high-quality voice conversations, the Cisco 8851 offers a user-friendly and scalable solution for today's workplace needs.
