Cisco CP-7841-K9 IP phone / endpoint
Brand: Cisco | Category: Accessories & Components
SKU: CSC-CP-7841-K9 | Part #: CP-7841-K9 | MPN: CP-7841-K9
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About the Cisco CP-7841-K9 IP phone / endpoint
The Cisco CP-7841-K9 is a desktop IP phone with wall-mount support, designed for professional office environments where flexible deployment is essential. This four-line endpoint from Cisco's IP Phone 7800 Series combines a compact form factor with enterprise-grade calling features, making it ideal for organizations standardizing on Cisco unified communications infrastructure.
The CP-7841-K9 delivers essential VoIP capabilities through its 3.5-inch grayscale backlit LCD display and support for SIP and SCCP signaling protocols, ensuring compatibility with Cisco Unified Communications Manager (UCM) and Webex Calling environments. Audio quality is enhanced by wideband HD codec support including G.711, G.722, and G.729a, paired with a full-duplex wideband speakerphone for hands-free communication. The phone features four programmable line/feature keys plus fixed function keys for Hold, Transfer, Conference, Mute, Headset, Speakerphone, and Volume control. Connectivity is provided through two integrated 10/100/1000 Mbps Gigabit Ethernet ports—one for LAN and one for PC passthrough—plus an RJ-9 analog headset port. Security is built in with SRTP media encryption, TLS signaling, and IEEE 802.1X port-based authentication, alongside IPv4, IPv6, and IEEE 802.1Q VLAN support. Power is delivered via IEEE 802.3af Power over Ethernet (PoE), with an optional Cisco CP-PWR-CUBE-4 external power supply available for purchase separately. The phone operates reliably across standard office temperatures from 0°C to 40°C (32°F to 104°F) and is finished in Charcoal Gray.
Network engineers and IT procurement teams deploying mid-scale unified communications environments will find the CP-7841-K9 a practical choice for desk workers requiring reliable, standards-based VoIP functionality without complexity. To request a quotation for the Cisco CP-7841-K9 or to discuss volume licensing and regional availability, contact Omnixon Global today.
Technical Specifications
| Brand | Cisco |
| Category | Accessories & Components |
| SKU | CSC-CP-7841-K9 |
| Part Number | CP-7841-K9 |
| Condition | New |
| Interface | 802.3af PoE |
| Manufacturer Part Number | CP-7841-K9 |
| Product Line | Cisco IP Phone 7800 Series |
| Display | 3.5-inch grayscale backlit LCD |
| Number of Lines | 4 |
| Signaling Protocols | SIP, SCCP |
| Call Control Compatibility | Cisco Unified Communications Manager (UCM), Webex Calling |
| Audio Codec Support | G.711, G.722 (wideband HD audio), G.729a |
| Speakerphone | Full-duplex wideband speakerphone |
| Headset Port | RJ-9 analog headset port |
| Network Interface | Two integrated 10/100/1000 Mbps Gigabit Ethernet ports (LAN + PC passthrough) |
| Power Source | IEEE 802.3af Power over Ethernet (PoE); no external power supply included |
| External Power Supply | Optional Cisco CP-PWR-CUBE-4 (sold separately) |
| Protocol Support | IPv4, IPv6, IEEE 802.1Q VLAN, IEEE 802.1X port-based authentication |
| Security Features | SRTP media encryption, TLS signaling, 802.1X authentication |
| Programmable Feature Keys | 4 line/feature keys |
| Fixed Feature Keys | Hold, Transfer, Conference, Mute, Headset, Speakerphone, Volume |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Form Factor | Desktop with wall-mount support |
| Color | Charcoal Gray |
Frequently Asked Questions about Cisco CP-7841-K9 IP phone / endpoint
What does the Cisco CP-7841-K9 IP phone / endpoint do?
The Cisco CP-7841-K9 IP phone / endpoint is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.