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Cisco CP-8851-K9 8851 IP VoIP Color Display PoE Office Phone
Inclusive of VAT · Warranty included
CISCO
Product Specification
| Brand | CISCO |
| SKU | PHONE-CISCO-8851-K9 |
| Product Type | IP VoIP Office Phone |
| Series | Cisco 8800 Series |
| Display | 5 Inch Color Display |
| Network Ports | Gigabit Ethernet Ports |
| Protocol Support | VoIP SIP Protocol |
| Audio | HD Voice Quality |
| Power | PoE Powered Device |
| Expansion Support | Supports Expansion Modules |
| Form Factor | Desktop Office IP Phone |
About This Product
Overview
The Cisco CP-8851-K9 is a business IP phone built for office communication environments that rely on VoIP calling and straightforward desktop deployment. As part of the Cisco 8800 Series, it combines a 5-inch color display with Gigabit Ethernet connectivity to support everyday call handling, contact access, and network integration in a professional workspace. Its support for VoIP SIP protocol makes it suitable for organizations standardizing on SIP-based voice systems, while the desktop office design helps it fit naturally into reception areas, shared desks, and individual workstations. The phone is also a practical choice for teams that want a familiar physical handset experience with the benefits of IP telephony. Because it is a PoE powered device, installation can be simplified in environments where Power over Ethernet is already in use, reducing the need for separate power adapters at each desk. The inclusion of expansion module support adds flexibility for users who need additional line appearances or function keys as communication demands grow. Overall, this model is aimed at businesses looking for a dependable office phone with clear display visibility, network-ready features, and support for structured voice deployments.
Performance & Scalability
Designed for business use, the CP-8851-K9 offers the network performance expected from a modern IP office phone, including Gigabit Ethernet ports that help maintain efficient connectivity on the local network. This is especially useful in environments where voice traffic shares infrastructure with other office devices and where maintaining responsive call handling matters. HD voice quality supports clearer audio for day-to-day conversations, which can improve communication in busy offices, customer service desks, and internal team settings. The phone’s support for VoIP SIP protocol makes it easier to align with SIP-based telephony platforms, helping IT teams deploy a consistent voice endpoint across multiple users or departments. For organizations that anticipate changing communication needs, support for expansion modules provides a path to extend functionality without replacing the base phone. That scalability can be valuable for receptionists, executives, and power users who need more accessible controls or additional call management options. Combined with PoE support, the phone can also fit into larger rollouts where centralized power and network management are preferred. This makes the Cisco 8851 a practical endpoint for businesses that want a balance of call quality, network efficiency, and room to grow within an existing voice environment.
Storage Flexibility
As an IP VoIP office phone, the Cisco CP-8851-K9 is focused on communication rather than local storage, but it offers flexibility through its support for expansion modules and its compatibility with business network environments. The 5-inch color display provides a clear interface for call information and user interaction, helping staff manage contacts, lines, and phone functions efficiently during the workday. In deployments where multiple phones are used across a site, the desktop form factor and PoE powered design can simplify installation and standardize setup. The Gigabit Ethernet ports help the phone integrate cleanly into wired office networks, while SIP protocol support allows it to work within voice systems that are built around open telephony standards. For businesses planning a broader rollout, this kind of flexibility is important because it allows the phone to adapt to different user roles and office layouts without requiring a complex deployment model. The result is a communication device that can be placed where it is needed and configured to support the workflow of the team using it.
Why Choose This Product?
The Cisco CP-8851-K9 is a strong fit for organizations that want a business-class desktop IP phone with a clear display, reliable network connectivity, and support for modern VoIP environments. It brings together the practical features many offices need, including HD voice quality, Gigabit Ethernet ports, PoE power support, and compatibility with SIP-based systems. The Cisco 8800 Series platform is well suited to professional settings where consistent communication tools are important, and the ability to use expansion modules adds useful flexibility for users with more advanced call handling needs. For IT teams, the combination of PoE and wired Ethernet can help streamline deployment and reduce desk clutter. For end users, the color display and voice quality contribute to a more efficient calling experience. If you are looking for a desktop office IP phone that fits into a structured business network and supports scalable communication needs, this model offers a practical and dependable option.
Frequently Asked Questions
What type of phone is the Cisco CP-8851-K9?
It is a business IP VoIP office phone designed for desktop use in professional environments.
Does this phone support SIP?
Yes, it supports VoIP SIP protocol for compatible business voice systems.
What display does the Cisco 8851 have?
It features a 5-inch color display for viewing call information and phone functions.
Is the phone powered by PoE?
Yes, this model is a PoE powered device.
Can this phone be expanded?
Yes, it supports expansion modules for added functionality.
Why buy refurbished?
Enterprise-grade performance at a fraction of the price of new.
Fully tested and verified
Every unit goes through hardware diagnostics before dispatch: POST tests, burn-in, memory checks and power supply verification.
Enterprise performance for less
Refurbished units deliver the same hardware capability as new, at significantly lower upfront cost, freeing budget for CPUs, memory and storage.
Available now
New enterprise hardware carries lead times of weeks or months. Our stock is held in Doha and ready to ship within 24 hours.
Backed by support
Warranty on every unit we sell, with installation and ongoing hardware support available across Qatar.