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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 new 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 on-premises and hosted infrastructure platforms. It is also supported on third party hosted call control services.
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.
Additionally, Cisco has adopted circular design principles in its products by pioneering the use of post-consumer recycled plastic. The 8851 is one of the models that now reduces the use of natural resources while closing the loop with its own electronic waste. Learn more about what this means by visiting the Cisco’s Circular Economy website.
| Design | |
| Product type | IP Phone |
| Handset type | Wired handset |
| Product colour | Black |
| Backlight keypad | Yes |
| Device lock | Yes |
| Wall mountable | Yes |
| Mounting | Desk/Wall |
| Phone features | |
| Call waiting | Yes |
| Speed dialling | Yes |
| Call hold | Yes |
| Call forwarding | Yes |
| Caller ID | Yes |
| Call pick up | Yes |
| Call transfer | Yes |
| Message-waiting indicator (MWI) | Yes |
| Management features | |
| Volume control | Digital |
| Display | |
| Display diagonal | 12.7 cm (5") |
| Display resolution | 800 x 480 pixels |
| Touchscreen | No |
| Audio | |
| Speakerphone | Yes |
| Microphone mute | Yes |
| Voice codecs | G.711a, G.722, G.729A, iLBC |
| Network | |
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Bluetooth | Yes |
| Bluetooth version | 3.0+HS |
| Supported network protocols | SIP, SPD, UDP, GARP, DNS, TFTP, HTTPS, VLAN, RTP, RTCP, PPDP |
| Quality of Service (QoS) support | Yes |
| DHCP client | Yes |
| Security algorithms | EAP-FAST, EAP-TLS, HTTPS, SIPS, SSH, SSL/TLS |
| Networking standards | IEEE 802.3ab, IEEE 802.3af, IEEE 802.3at, IEEE 802.3i, IEEE 802.3u |
| Ports & interfaces | |
| USB 2.0 ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 2 |
| RJ-9 ports quantity | 1 |
| DC-in jack | Yes |
| Power | |
| Power over Ethernet (PoE) | Yes |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 40 øC |
| Operating relative humidity (H-H) | 10 - 90% |
| Storage relative humidity (H-H) | 10 - 95% |
| Storage temperature (T-T) | -10 - 60 øC |
| Weight & dimensions | |
| Width | 257.3 mm |
| Depth | 40 mm |
| Height | 229.1 mm |
| Weight | 1.19 kg |
| Package width | 263.9 mm |
| Package depth | 353.1 mm |
| Package height | 75.9 mm |
| Package weight | 1.6 kg |
| Packaging content | |
| Number of handles included | 1 pc(s) |
| Logistics data | |
| Country of origin | China |
| Quantity per pack | 1 pc(s) |
| Harmonized System (HS) code | 85171800 |
| Warranty | |
| Base Warranty | Non Non |