Cisco CP-9951-C-K9 IP phone / endpoint
Brand: Cisco | Category: Accessories & Components
SKU: CSC-CP-9951-C-K9 | Part #: CP-9951-C-K9 | MPN: CP-9951-C-K9
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About the Cisco CP-9951-C-K9 IP phone / endpoint
The Cisco CP-9951-C-K9 is validated for deployment across Cisco Unified Communications Manager (UCM), Cisco Business Edition, Cisco Hosted Collaboration Solution, and Webex Calling platforms, ensuring seamless integration into enterprise unified communications ecosystems. This charcoal-finished desktop IP phone from the Cisco Unified IP Phone 9900 series delivers professional-grade voice endpoints for mid-to-large organization call control environments. The device features a 5-inch WVGA colour touchscreen with 480 × 272 resolution, supports 5 SIP lines with 12 programmable feature keys, and provides multiple audio paths including handset, full-duplex speakerphone, and headset connectivity. Wideband (HD) audio standards—G.722, G.711a/u, G.729a/b, and iLBC—ensure crystal-clear voice quality across all communication modes.
Network engineers and IT procurement teams responsible for enterprise telephony infrastructure select the CP-9951-C-K9 for its dual integrated 10/100/1000 Mbps Gigabit Ethernet ports (LAN + PC passthrough), eliminating the need for separate network cabling and simplifying desk-side deployment. The phone operates via IEEE 802.3af Power over Ethernet (PoE) with optional external power supply support (sold separately), reducing installation complexity. Built-in Bluetooth 2.1 + EDR and a single USB 2.0 port extend device connectivity, while Cisco SRST (Survivable Remote Site Telephony) support ensures call continuity during network interruptions. Security is reinforced through 802.1X authentication, TLS signalling encryption, and SRTP media encryption, meeting stringent enterprise data protection requirements. The phone supports both SIP and SCCP signalling protocols (depending on firmware load) and accommodates optional wall-mount installation for flexible workspace configurations.
Organizations evaluating the CP-9951-C-K9 for deployment across their unified communications infrastructure can leverage Omnixon Global's B2B distribution expertise and regional sourcing capabilities in the UAE. Contact Omnixon Global today to submit your request for quotation and discuss volume pricing, delivery schedules, and integration support for this Cisco endpoint solution.
Technical Specifications
| Brand | Cisco |
| Category | Accessories & Components |
| SKU | CSC-CP-9951-C-K9 |
| Part Number | CP-9951-C-K9 |
| Condition | New |
| Interface | 802.3af PoE |
| Manufacturer Part Number | CP-9951-C-K9 |
| Product Series | Cisco Unified IP Phone 9900 |
| Colour | Charcoal |
| Display | 5-inch WVGA colour touchscreen, 480 × 272 resolution |
| SIP Lines | 5 |
| Programmable Feature Keys | 12 |
| Audio Standards | Wideband (HD) audio; G.722, G.711a/u, G.729a/b, iLBC |
| Audio Paths | Handset, full-duplex speakerphone, headset |
| Network Interface | Two integrated 10/100/1000 Mbps Gigabit Ethernet ports (LAN + PC passthrough) |
| Power | IEEE 802.3af Power over Ethernet (PoE); optional external power supply (sold separately) |
| Bluetooth | Bluetooth 2.1 + EDR (integrated) |
| USB | USB 2.0 port (1) |
| Signalling Protocol | SIP (SCCP also supported depending on firmware load) |
| Call Control Compatibility | Cisco Unified Communications Manager (UCM), Cisco Business Edition, Cisco Hosted Collaboration Solution, Webex Calling |
| Security | 802.1X authentication, TLS signalling encryption, SRTP media encryption |
| Survivability | Cisco SRST (Survivable Remote Site Telephony) support |
| Wall-Mount Support | Yes (optional wall-mount kit) |
| Form Factor | Desktop IP phone |
Frequently Asked Questions about Cisco CP-9951-C-K9 IP phone / endpoint
What does the Cisco CP-9951-C-K9 IP phone / endpoint do?
The Cisco CP-9951-C-K9 IP phone / endpoint is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.