Cisco CP-8811-K9 Business Class IP Phone – Open Box

The Cisco CP-8811-K9 is a business-class IP phone designed for reliable, secure, and high-quality voice communication in professional environments. It features a widescreen display, wideband audio, extensive call-handling functions, and enterprise-grade security protocols, making it suitable for organisations that need clarity, durability, and robust communication tools. With its intuitive interface and full SIP support, the CP-8811-K9 integrates seamlessly into Cisco Unified Communications platforms.

Built for modern workplaces, this model supports advanced communication features such as visual voicemail, multilanguage support, electronic hookswitch control, and corporate directory integration. Its efficiency and rich feature set make it ideal for call centres, offices, and collaborative workspaces where stable performance and clear audio quality are essential.

✔ Key Features & Benefits
✔ High-Quality Wideband Audio – Includes support for G.711, G.722, iLBC, iSAC and more.
✔ Enterprise-Grade Functionality – Hundreds of advanced call-handling features such as call park, pickup, mobility, conferencing and BLF.
✔ Secure Communications – TLS, SRTP, HTTPS, SSH, 802.1x, MIC/LSC certificates, secure boot.
✔ SIP-Ready – Full compatibility with SIP and Cisco Unified Communications systems.
✔ Energy-Efficient – Cisco EnergyWise compliant for reduced operational costs.
✔ Widescreen Display – Clear visual interface for menus, caller ID, voicemail and configuration.

✔ Ideal Uses
✔ Corporate offices using Cisco Unified Communications.
✔ Call centres requiring reliable, high-volume call handling.
✔ Remote branches or enterprise VoIP deployments.
✔ Environments needing multilanguage support.
✔ Desk phones for reception, administrative, or executive use.

✔ Specifications
✔ Condition: Open Box – may show minimal handling marks. Fully tested and fully functional.
✔ Product Type: Cisco IP Phone
✔ Model: CP-8811-K9
✔ Display: Widescreen grayscale display
✔ Audio Codec Support:
   G.711 A-law/µ-law, G.722, G.722.2, G.729ab, iLBC, iSAC, OPUS
✔ Call Features:
   Dialing, BLF, speed dial, call park, call pickup, caller ID, corporate directory, mobility, conferencing, redial, privacy, voicemail, visual voicemail, intercom, music on hold, meet-me conference, whisper coaching, and more
✔ Electronic Hookswitch: Supported
✔ QoS Support: Cisco Discovery Protocol, 802.1Q/p VLAN tagging
✔ Network Protocols: SIP, SDP, IPv4/IPv6, DHCP, DNS, TFTP, HTTPS, RTP/RTCP, LLDP-MED
✔ Security Features:
   Secure boot, encrypted configuration, SRTP, TLS, SSH, VPN client, CAPF, MIC & LSC certificates
✔ Dimensions (H × W × D): 229.1 × 257.34 × 40 mm (excluding stand)
✔ Weight: 1.17 kg
✔ Temperature Range:
   Operational: 0 to 40°C
   Non-operational: –10 to 60°C
✔ Humidity:
   Operating: 10–90% non-condensing
✔ Casing: ABS textured plastic, cosmetic class A
✔ Language Support: Full multilingual set including English, French, German, Spanish, Chinese, Japanese, Arabic, Portuguese, Russian, Korean, Italian, and many others.

What’s in the Box
✔ Cisco CP-8811-K9 IP Phone
✔ Stand
✔ LAN Cable
✔ Handset & Curly Cord