Supports Webex Calling
All phones come individually boxed with a handset, ethernet cable and curly cord
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The Cisco 8811 IP Phone (CP-8811-K9) is a high-end VoIP desk phone designed for dependable, secure and easy communication in today's corporate settings. It offers easy navigation and quick access to call functions, messaging and directories due to its sharp 5-inch widescreen (800 x 480 pixel) grayscale backlit display. In order to minimize communication barriers in collaborative settings, the 8811, which is designed for both small businesses and enterprise deployments, uses wideband HD audio on the handset, speakerphone or headset for crystal-clear sound quality.
The CP-8811-K9 is perfect for multi-call management, high call volumes and unified communications deployments because it supports up to five programmable SIP lines, has an integrated dual Gigabit Ethernet switch and is fully compatible with Cisco Unified Communications Manager (CUCM) and Cisco Business Edition solutions. Its ENERGY STAR certification reduces operating expenses and its strong security features, including as secure boot, device authentication and encrypted voice communications, guarantee that private business discussions are kept safe. It is powered by PoE or optional adapters. It is a popular alternative for desk, reception or wall-mounted office use because of its ergonomic, contemporary style, plug-and-play installation and versatile mounting options.
• 5-Inch Widescreen Backlit Display with high-resolution (800 x 480) grayscale screen offers clear visual call status and navigation even in low lighting.
• HD Wideband Audio delivers lifelike, full-duplex sound on handset, headset, and speakerphone, with advanced echo cancellation for clear communication.
• Supports Up to 5 Programmable SIP Lines with customizable keys for multiple extensions, speed dials or feature access—optimized for multitasking professionals.
• Dual Gigabit Ethernet Ports with integrated 10/100/1000 Mbps switch for seamless connection to both PC and network, supporting complex office IT setups.
• Power Over Ethernet (PoE) Support that streamlines cable management and installation, extends placement possibilities in modern networks.
• Secure Voice Communications with built-in encryption protocols (TLS, SRTP), secure boot, device authentication and firmware upgradability.
• Ergonomic, Modern Design with sleek form factor with adjustable foot stand, wall-mount kit readiness and tactile backlit keys for ease of use.
• Integrated Headset Port supports wired headsets for hands-free operation.
• Comprehensive Calling Features advanced call handling, conferencing, transfer, hold, voicemail, call history, BLF and more.
• Global Language Support with socalized display options, including right-to-left text for global deployments.
🗹 Multiline support, quick access keys and HD audio streamline call management and foster more effective business communications.
🗹PoE compatibility, dual Ethernet ports, and ENERGY STAR efficiency reduce cabling needs and power consumption.
🗹Enterprise-grade encryption and device authentication keep sensitive business data and calls safe from interception or tampering.
🗹 Intuitive interface, customizable keys and ergonomic build make it accessible and comfortable for users at any skill level.
🗹 Easy integration with Cisco UC, BE6000, and CME platforms future-proofs investment and simplifies expansion.
🗹 Suitable for desks, shared workspaces or wall mounting in lobbies and conference rooms—adapting to evolving office needs.
| Manufacturer | Cisco |
| Manufacturer Part Number | CP-8811-K9 |
| Product Name | Cisco 8811 IP Phone |
| Product Type | VoIP Phone |
Compatible Platforms | Cisco Business Edition 6000 |
Body Material | ABS plastic |
Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
Dialer Type | Keypad |
Dialer Location | Base |
Conference Call Capability | Yes |
Intercom | Yes |
Speakerphone | Yes (digital duplex) |
Menu Operation | Yes |
Programmable Buttons Qty | 5 |
Indicators | Voice message waiting indicator, speakerphone indicator, headset |
Firmware Upgradable | Yes |
Additional Functions | Call timer, Intercom |
Additional Features | Music on hold, BLF status lamps |
Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
VoIP | Yes |
VoIP Protocols | SIP, RTCP, RTP, SRTP, SDP |
Voice Codecs | G.722, G.729a, G.711u, G.711a, iLBC, iSAC |
Lines Supported | 5 lines |
Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p |
Security | IEEE 802.1X, TLS |
Power Over Ethernet (PoE) Support | Yes |
Network Protocols | IP, TFTP, UDP, Cisco Discovery Protocol (CDP), HTTP, DNS, HTTPS, SRTP, Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED), RTCP, RTP |
Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
Compatible Software | Cisco Unified Communications Manager 8.5.1 or later, Cisco Hosted Collaboration Solution, Cisco Unified Communications Manager Express 10.0 or later |
Network Features | Class 2 PoE |
Type | LCD display - monochrome |
Display Location | Base |
Diagonal Size | 5" |
Display Resolution | 800 x 480 pixels |
Backlit | Yes |
Display Languages | Danish, Hebrew, Hungarian, Czech, Croatian, Slovenian, Thai, Slovak, Brazilian Portuguese, English, German, French, Italian, Norwegian, Portuguese, Polish, Finnish, Swedish, Russian, Spanish, Dutch, Greek, Turkish, Arabic, Bulgarian, Latvian, Lithuanian, Estonian, Serbian, Romanian, Catalan, Japanese, Chinese, Korean |
Connections | Headset jack / RJ-9 ¦ Electronic hook switch (EHS) |
Hearing Aid Compatible | Yes |
Placing / Mounting | Wall-mountable, table mount |
Compliant Standards | ADA, HAC (Hearing Aid Compatible) |
Width | 10.1 in |
Depth | 1.6 in |
Height | 9 in |
Weight | 2.6 lbs |