Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=)

Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=)

Brand Cisco

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£470.99

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You save £12.56 (3%)

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Listed since 7 April 2026

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Description

LARGE DISPLAY: 5-inch high-resolution widescreen WVGA colour display with localised language support to meet the needs of global users. FIXED FUNCTION KEYS: One-touch access to service, messaging, directory, hold/resume, transfer and conference features. FULLY PROGRAMMABLE: Set up line keys to support either lines, such as directory numbers, or call features like speed dialling. OPTIMAL PERFORMANCE: Class 4 PoE with a built-in Ethernet Gigabit switch for your PC connection. PEACE OF MIND: 1-year limited hardware warranty. The Cisco IP Phone 8851 Series with Multi-Platform Phone firmware helps increase personal productivity in the workplace thanks to powerful yet easy-to-use features. This office phone has an attractive, ergonomic design that offers comfortable use, with wideband audio for crystal clear voice communications, ‘always-on’ reliability and encrypted voice communications for enhanced security.. Design. Wall mountable. Yes. Mounting. Desk/Wall. Device lock. Yes. Backlight keypad. Yes. Product colour. Black. Handset type. Wired handset. Product type. IP Phone. Phone features. Call transfer. Yes. Message-waiting indicator (MWI). Yes. Caller ID. Yes. Call waiting. Yes. Speed dialling. Yes. Call hold. Yes. Call forwarding. Yes. Call pick up. Yes. Management features. Volume control. Digital. Display. Touchscreen. No. Display resolution. 800 x 480 pixels. Display diagonal. 12.7 cm (5"). Audio. Voice codecs. G.711a, G.722, G.729A, iLBC. Microphone mute. Yes. Speakerphone. Yes. Network. Quality of Service (QoS) support. Yes. DHCP client. Yes. Supported network protocols. SIP, SPD, UDP, GARP, DNS, TFTP, HTTPS, VLAN, RTP, RTCP, PPDP. Networking standards. IEEE 802.3ab, IEEE 802.3af, IEEE 802.3at, IEEE 802.3i, IEEE 802.3u. Security algorithms. EAP-FAST, EAP-TLS, HTTPS, SIPS, SSH, SSL/TLS. Bluetooth version. 3.0+HS. Bluetooth. Yes. Wi-Fi. No. Ethernet LAN. Yes. Ports & interfaces. DC-in jack. Yes. Ethernet LAN (RJ-45) ports. 2. RJ-9 ports quantity. 1. USB 2.0 ports quantity. 1. Power. Power over Ethernet (PoE). Yes. Operational conditions. Operating temperature (T-T). 0 - 40 °C. Operating relative humidity (H-H). 10 - 90%. Storage temperature (T-T). -10 - 60 °C. Storage relative humidity (H-H). 10 - 95%. Weight & dimensions. Package weight. 1.6 kg. Package height. 75.9 mm. Package depth. 353.1 mm. Package width. 263.9 mm. Weight. 1.19 kg. Height. 229.1 mm. Depth. 40 mm. Width. 257.3 mm. Packaging content. Number of handles included. 1 pc(s). Logistics data. Country of origin. China. Harmonized System (HS) code. 85171800. Quantity per pack. 1 pc(s)

Full specifications

Marque Cisco
Référence fabricant cp8851k9
EAN 0882658698422

Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=): complete technical analysis for 2026

When it comes to Informatique, the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) by Cisco is a reference that savvy buyers know well. Its value for money in 2026 deserves particular attention, especially given its availability across many retailers and the brand's strength in the market. Our comparison tool lets you view all available offers in real time, with or without free delivery, and click directly on the offer of your choice.

Who is this Informatique for?

The Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) benefits from the expertise of Cisco in this category. Its design meets current market standards and satisfies even the most demanding users in their everyday activities. The brand's reliability translates into positive feedback from regular buyers, who particularly appreciate the consistency between the promises of the product sheet and the real-world experience. For the Informatique category, this is an option we recommend without hesitation.

For intensive or occasional use

The Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) adapts to different levels of use in the Informatique category. Whether you use it intensively every day or more occasionally, this Cisco product offers appreciated versatility. Regular users value its reliability over time, while occasional users appreciate how easy it is to pick up without any special training. For even more demanding use, also check the Cisco 8875 IP conference phone.

Against the competition

In the Informatique market, the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) is well positioned thanks to its price from £470.99 and the strength of Cisco. Our comparison tool lets you verify in real time whether this positioning still holds against other available offers.

Market price ranges in 2026

RangeIndicative price
Entry-levelUnder 384300 £
Mid-range384300 £ to 896710 £
High-endOver 896710 £

The best times to buy the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) at a lower price are Black Friday in November, the January sales and the summer sales in July. Our price history lets you judge whether the current price is a genuine bargain or whether it is worth waiting a few weeks. Outside these periods, flash promotions remain frequent among Compiral's partner retailers.

Frequently asked questions about Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=)

How does the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) compare to competitors in the Informatique category?

In the Informatique category, the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

Is the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) suitable for beginners?

Yes, the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) is generally appreciated by both beginners and regular users of the Informatique category. It is quick to set up and Cisco usually provides clear documentation. If you are new to this product category, consult the spec sheet on this page to identify the key criteria to check before making your choice.

Is there a refurbished version of the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=)?

Refurbished versions of the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) drop during the year?

Prices for the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.

Is delivery free for the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) at all retailers?

Free delivery is not guaranteed for the Cisco IP Business Phone 8851, 5-inch WVGA Colour Display, Gigabit Ethernet Switch, Class 4 PoE, USB Port, 10 SIP Registrations, 1-Year Limited Hardware Warranty (CP-8851-K9=) at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.

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