| Marketing Description |
The Cisco IP Phone 8851 is a business-class collaboration endpoint that combines high-fidelity, reliable, secure, and scalable voice communications with Cisco Intelligent Proximity for telephony integration for personal mobile devices to support midsize to large enterprise businesses.
With the Cisco IP Phone 8851, you can increase personal productivity through an engaging user experience that is both powerful and easy-to-use. The IP Phone 8851 combines an attractive ergonomic design with wideband audio for crystal clear voice communications, "always-on" reliability, encrypted voice communications to enhance security, and access to a comprehensive suite of unified communication features from Cisco communication servers.
In addition, Cisco Intelligent Proximity brings the worlds of desk and mobile together for you when you are using your mobile device at the desk for your work. You can move the audio path over to the Cisco IP Phone 8851 during active mobile calls to take advantage of its superior audio acoustics. An example would be to share a conversation with a colleague who you want to listen in. This capability gives you greater flexibility and a superior user experience when at your desk.
The IP Phone 8851 also comes standard with a USB port so you can charge your smartphone when at your desk, and stay connected when away from your desk.
The Cisco IP Phone 8851 offers five programmable line keys. You can configure keys to support either multiple directory numbers or calling features such as speed dial. You can also boost productivity by handling multiple calls for each directory number using the multicall-per-line feature. Fixed-function keys give you one-touch access to applications, messaging, directory, as well as often-used calling features such as hold/resume, transfer, and conference. A five-way navigation cluster helps you transition through menus more easily. Backlit acoustic keys provide flexibility for audio path selection and switching. |
| Product Features |
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Enhanced connectivity
Equipped with 2 x Ethernet 10Base-T/100Base-TX/1000Base-T network ports, the Cisco IP Phone 8851 ensures seamless connectivity and integration into a variety of network environments, facilitating high-speed communications and data transfer.
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Superior audio quality
Featuring a wide range of voice codecs including G.711a, G.711u, G.722, G.729a, iLBC, and iSAC, the Cisco IP Phone 8851 delivers clear voice quality, enhancing the overall communication experience.
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Advanced call handling
With support for 5 lines and multiple VoIP protocol support, including SIP and SRTP, this phone offers advanced call services such as Call Forwarding, Call Hold, Call Transfer, and Voice Mail, making it an ideal solution for dynamic business environments.
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High-definition display
The 5-inch LCD display with a resolution of 800 x 480 pixels, backlit for improved visibility, offers 24-bit color support, providing a vibrant, clear view of call and directory information.
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Secure communication
Incorporating security protocols like IEEE 802.1X and TLS, along with Quality of Service (QoS) features, the Cisco IP Phone 8851 ensures secure and prioritized voice traffic, safeguarding sensitive information.
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| General |
| Product Type |
VoIP phone |
| Compatible Platforms |
Cisco Business Edition 6000 |
| Body Colour |
White |
| Image Colour Disclaimer |
The displayed product image may be a different colour |
| Body Material |
ABS plastic |
| Phone Features |
| Wireless Interface Provided |
Bluetooth |
| Bluetooth Profiles |
Hands-Free Profile (HFP), Phonebook Access Profile (PBAP) |
| Call Services |
Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
| Key Expansion Module Max Qty |
2 |
| Dialer Type |
Keypad |
| Dialer Location |
Base |
| Conference Call Capability |
Yes |
| Intercom |
Yes |
| Speakerphone |
Yes (digital duplex) |
| Menu Operation |
Yes |
| Programmable Buttons Qty |
5 |
| Indicators |
Voice message waiting indicator, speakerphone indicator, headset |
| Firmware Upgradable |
Yes |
| Additional Functions |
Call timer, Intercom |
| Additional Features |
Music on hold, BLF status lamps, compatible with Bluetooth headsets |
| IP Telephony |
| Main Features |
Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP |
Yes |
| VoIP Protocols |
SIP, RTCP, RTP, SRTP, SDP |
| Voice Codecs |
G.722, G.729a, G.711u, G.711a, iLBC, iSAC |
| Lines Supported |
5 lines |
| Quality of Service |
IEEE 802.1Q (VLAN), IEEE 802.1p |
| Security |
IEEE 802.1X, TLS |
| Power Over Ethernet (PoE) Support |
Yes |
| Network Protocols |
IP, TFTP, UDP, Cisco Discovery Protocol (CDP), HTTP, DNS, HTTPS, SRTP, Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED), RTCP, RTP |
| Network Ports Qty |
2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Compatible Software |
Cisco Unified Communications Manager 8.5.1 or later, Cisco Hosted Collaboration Solution, Cisco Unified Communications Manager Express 10.0 or later |
| Network Features |
Class 3 PoE |
| Display |
| Type |
LCD display - colour |
| Display Location |
Base |
| Diagonal Size |
5" |
| Display Resolution |
800 x 480 pixels |
| Colour Depth |
24-bit (16.7 million colours) |
| Backlit |
Yes |
| Display Languages |
Danish, Hebrew, Hungarian, Czech, Croatian, Slovenian, Thai, Slovak, Brazilian Portuguese, English, German, French, Italian, Norwegian, Portuguese, Polish, Finnish, Swedish, Russian, Spanish, Dutch, Greek, Turkish, Arabic, Bulgarian, Latvian, Lithuanian, Estonian, Serbian, Romanian, Catalan, Japanese, Chinese, Korean |
| Miscellaneous |
| Connections |
Headset jack / RJ-9
Electronic hook switch (EHS)
USB |
| Hearing Aid Compatible |
Yes |
| Placing / Mounting |
Wall-mountable, table mount |
| Compliant Standards |
CISPR 22 Class B, CISPR 24, EN 61000-3-2, EN 61000-3-3, EN55024, EN55022 Class B, ICES-003 Class B, AS/ACIF S004, RSS-210, RSS-102, FCC Part 68, ADA, CS-03, UL 60950-1 Second Edition, EN 60601-1-2, FCC CFR47 Part 15 B, GB 4943, AS/NZS 60950, HAC (Hearing Aid Compatible), CSA C22.2 No. 60950-1 Second Edition, EN 60950-1 Second Edition, IEC 60950-1 Second Edition, EN 300 328, EN 301 489-1, EN 301 489-17 |
| Dimensions & Weight (Base) |
| Width |
25.734 cm |
| Depth |
4 cm |
| Height |
22.91 cm |
| Weight |
1.19 kg |
| Manufacturer Warranty |
| Service & Support |
Limited warranty - replacement - 1 year |
