Cisco 8851 IP Phone
Experience the utmost audio excellence with high-quality, full-duplex, wideband sound featuring superior echo cancellation, ensuring unparalleled audio quality for seamless communication with both internal and external stakeholders. Your company’s image is paramount, and our commitment to exceptional phone sound ensures every call leaves a lasting impression.
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Limited Time Only
Get a Free Quote Today
Fill out the form and make the switch
Sign up today and receive 2 Months on Telex
Save up to 60% by making the switch to Telex today
Product Details
Enterprise-level communication
Embrace the demands of a modern workplace with the Cisco 8851, delivering efficient and top-notch communication channels that meet the highest standards. Enhance your professional interactions with its enterprise-level connection, enabling seamless voice collaboration. Experience unrivaled productivity and streamlined communication with integrated mobile device integration and a suite of best-in-class features.
Efficient, Flexible and Easy-to-use
Immerse yourself in seamless usability and enhanced visibility with the Cisco 8851's high-resolution, five-inch, widescreen colour display. Effortlessly navigate through crucial features and caller information, ensuring a streamlined communication experience. Stay productive and flexible with the convenience of a full-duplex speakerphone, enabling hands-free calling throughout your day
Advanced features that meet your needs. All in one device
Empower global users with the Cisco 8851's localised language support, including right-to-left on-screen text, facilitating seamless international communication. Harness the power of efficient and effective collaboration through an extensive suite of unified communication features, enabling smooth and streamlined communication experiences for your business.
Low energy cost in off-work hours. Thanks to modern technology
Embrace the sustainability revolution with the Cisco 8851, incorporating Cisco EnergyWise technology to prioritsie energy efficiency and environmental responsibility. With its Energy Star qualification, this phone sets a new standard for eco-conscious communication solutions, reducing energy consumption and minimizing environmental impact.
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Technical Specifications
Full lines supported
10 lines (SIP registrations)
Audio features
G.711 a-law and mu-law, G.722, G.729a/b, Internet Low Bitrate Codec (iLBC), and Internet Speech Audio Codec (iSAC), G.722.1, G.772.2, OPUS
Flexibility in placing and receiving calls with hands free thanks to a full-duplex speakerphone
Automatic Gain Control
Comfort Noise Generation
Silence Suppression/Voice Activity Detection
Acoustic Echo Cancellation (AEC)
Dynamic Noise Reduction
Telephony features
+ Dialing
Abbreviated dialing
Adjustable ring tones and volume levels
Adjustable display brightness
Agent greeting
Auto-answer
Auto-detection of headset
cBarge
Busy Lamp Field (BLF), BLF Pickup & speed dial
Callback
Call forward & call forward notification
Call filter & history lists
Hold, park & pickup call
Call timer
Call waiting
Call chaperone
Caller ID
Corporate directory
Conference, including traditional Join feature
Cross Cluster Extension Mobility (EMCC)
Direct transfer
Extension mobility
Fast-dial service
Forced access codes and client matter codes
Group call pickup
Intercom
Immediate divert
Malicious-caller ID
Message-waiting indicator (MWI)
Meet-me conference
Mobility
Music on hold (MoH)
Mute
Network profiles (automatic)
On- and off-network distinctive ringing
Personal directory
Predialing before sending
Privacy
Private Line Automated Ringdown (PLAR)
Redial
Ring tone per line appearance
Service Uniform Resource Locator (URL)
Shared line
Silent monitoring and recording
Speed dial
Time and date display
Transfer
Uniform Resource Identifier (URI) dialing
Visual voice mail
Voice mail
Whisper coaching
Network features
Session Initiation Protocol (SIP) for signaling
Session Description Protocol (SDP)
IPv4 and IPv6
User Datagram Protocol (UDP) (used only for Real-Time Transport Protocol [RTP] streams)
Dynamic Host Configuration Protocol (DHCP) client or static configuration
Gratuitous Address Resolution Protocol (GARP)
Domain Name System (DNS)
Trivial File Transfer Protocol (TFTP)
Secure Hypertext Transfer Protocol (HTTPS)
VLAN
Real-Time Transport Protocol (RTP)
Real-Time Control Protocol (RTCP)
Cisco Peer-to-Peer Distribution Protocol (PPDP)
Cisco Discovery Protocol
LLDP (including LLDP-MED)
Switch speed auto-negotiation
Security features
Secure boot
Secure credential storage
Device authentication
Configuration file authentication and encryption
Image authentication
Random bit generation
Hardware cryptographic acceleration
Certificate Authority Proxy Function (CAPF)
Manufacturer-Installed Certificates (MIC)
Locally Significant Certificates (LSC)
Ethernet 802.1x supplicant options: Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) and Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)
Signaling authentication and encryption using TLS
Media authentication and encryption using SRTP
HTTPS for client and server
Secure Shell (SSH) Protocol server
SSL-based VPN client
Cisco applications
Cisco Unified Communications Manager: 8.5.1 (Non-secured mode Only), 8.6.2, 9.1.2, 10.5.2, 11.0 and later
Cisco Unified Communications Manager Express (Unified CME): 10.0 and later through fast track
Cisco Business Edition 6000 (BE 6000): 8.6.2, 9.1.2, 10.5.2, 11.0 and later
Cisco Hosted Collaboration Solution (HCS): 8.6.2 and later (using supported UCM versions above
Weight
1.19 kg
Size (H x W x D)
229.1 mm x 257.34 mm x 40 mm
Language support
Arabic, Bulgarian, Catalan, Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, French, Finnish, German, Greek, Hebrew, Hungarian, Italian, Japanese, Latvian, Lithuanian, Korean, Norwegian, Polish, Portuguese, Portuguese, Romanian, Russian, Spanish, Slovak, Swedish, Serbian, Serbian, Slovenian, Thai, Turkish
User interface
An easy-to-use interface that provides a traditional telephony-like user experience
The 800 × 480, 24-bit color, 5-in. WVGA display provides scrollable access to calling features and text-based XML applications
The 8851 has the following keys:
Line keys
Soft keys
Back and release keys
Four-way navigation and select keys
Hold/Resume, Transfer, and Conference keys
Messaging, Application, and Directory keys
Standard keypad
Volume-control toggle key
Speakerphone, headset, and mute keys
Power
IEEE Power over Ethernet class 3 for hardware version prior to V08, class 4 for hardware version V08 and above. In PoE class 3 case, one KEM can be attached and powered up through PoE together with the host 8851 phone, in PoE class 4 case, two KEMs can be attached and powered up through PoE together with the host 8851 phone.
The phone is compatible with both IEEE 802.3af and 802.3at switch blades and supports both Cisco Discovery Protocol and Link Layer Discovery Protocol – Power over Ethernet (LLDP-PoE).
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