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• Cisco DP-9871-K9 is a premium VoIP desk phone with a 5" color touchscreen, 128-line support, Wi-Fi and Bluetooth connectivity, and enterprise-grade security via TPM 2.0, perfect for secure, modern workspaces.

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Cisco DP-9871-K9 Desk Phone – Carbon Black

The Cisco DP-9871-K9 Desk Phone is the flagship model in the 9800 Series, built to meet the demands of executive workspaces, shared desks, and high-security environments. Featuring a 5-inch color touchscreen LCD with 1280 × 720 resolution, the DP-9871 offers a clean, intuitive interface for handling complex call workflows. It supports up to 128 lines and integrates seamlessly with Cisco Unified Communications Manager, Webex Calling, BroadWorks, Asterisk, and other leading platforms.

This model includes Wi-Fi (802.11a/b/g/n/ac) and Bluetooth 5.2 LE for flexible deployment and device pairing, while its robust audio system delivers HD clarity with built-in AI noise removal and advanced codecs. The built-in Trusted Platform Module (TPM) 2.0 ensures security with support for SRTP, AES, FIPS 140-2, and TLS 1.3. Constructed from 74% post-consumer recycled plastic, it aligns with Cisco’s sustainability goals while delivering powerful enterprise-grade functionality.

• Touchscreen Display: 5-inch color LCD (1280 × 720) with responsive UI and multi-language support.
• Wireless Connectivity: Integrated dual-band Wi-Fi and Bluetooth 5.2 LE for wireless headset pairing and flexible installation.
• High Capacity: Supports up to 128 lines—ideal for high-call-volume environments.
• Audio Excellence: AI-enhanced audio, wideband codecs, acoustic echo cancellation, and full-duplex speakerphone.
• Security & Encryption: Trusted Platform Module (TPM) 2.0, FIPS 140-2, TLS 1.3, WPA3, SRTP, and secure boot.
• Smart Controls: One Button to Join (OBTJ), call recording, QR access, and calendar integration for modern collaboration.
• Ports & Expansion: Dual Gigabit Ethernet ports, RJ-9 headset jack, USB-A, and USB-C connectivity.
• Sustainable Build: ENERGY STAR certified and composed of 74% recycled materials.

• Model: DP-9871-K9
• Display: 5" color touchscreen LCD, 1280 × 720, backlit
• Voice Codecs: OPUS, G.722, G.722.2, G.711 (A/μ-law), G.729a/b, iLBC, iSAC
• VoIP Protocols: SIP, SDP, RTP, SRTP, RTCP
• Lines Supported: Up to 128 lines
• Security Features: TPM 2.0, FIPS 140-2, TLS 1.3, WPA3, EAP-TLS, AES
• Connectivity: 2 × RJ-45 Gigabit Ethernet, RJ-9 headset, USB-A, USB-C
• Wireless: Wi-Fi (802.11a/b/g/n/ac), Bluetooth 5.2 LE
• PoE Support: IEEE 802.3af Class 3
• Dimensions (H × W × D): 8.89 × 8.43 × 1.94 in (225.8 × 214 × 49.4 mm)
• Weight: 2.33 lbs (1055 g)
• Body Material: ABS polycarbonate, 74% post-consumer recycled plastic
• Certifications: ENERGY STAR, CE, FCC, UL, FIPS