Cisco Unified IP Phone 9851 – DP-9851-K9 – VoIP Business Phone with TPM 2.0

BRAND NEW WITH FULL CISCO WARRANTY!!!

The Cisco Desk Phone 9851 (DP-9851-K9) redefines enterprise communication with superior performance, modern design, and powerful collaboration features. Built for today’s connected workplaces, it supports up to 46 lines, ensuring seamless management of multiple calls across departments or clients.

Its 3.7-inch color LCD display (240 × 480 pixels) delivers crisp visuals and intuitive navigation, while dual Gigabit Ethernet ports and Class 3 PoE support simplify connectivity and reduce cabling needs. Designed with 74% post-consumer recycled plastic and ENERGY STAR® certification, the 9851 embodies Cisco’s commitment to sustainability and efficiency.

Engineered for crystal-clear communication, the phone supports a broad range of codecs including G.711, G.722, G.729, iLBC, iSAC, and Opus, ensuring HD audio in every call. Advanced voice features like acoustic echo cancellation (AEC), automatic gain control (AGC), and voice activity detection (VAD) guarantee exceptional clarity even in dynamic environments.

With built-in Trusted Platform Module (TPM) 2.0, FIPS 140-2, and TLS 1.3 encryption, it offers enterprise-grade security for confidential communications. Integration with Cisco Unified Communications Manager, Cisco Webex, and BroadWorks makes it the perfect fit for businesses seeking reliable, unified communication across hybrid environments.

Key Features – Cisco Desk Phone 9851 DP-9851-K9

• Display: 3.7" color LCD (240 × 480 pixels), backlit
• Lines Supported: 46 lines
• Audio: HD audio with advanced codecs (G.711, G.722, G.729, Opus, iLBC)
• Network: Dual 10/100/1000 Ethernet ports, Integrated switch
• Connectivity: RJ-9 headset jack, USB Type-A, USB Type-C, NFC
• Power: IEEE 802.3af Class 3 Power over Ethernet (PoE)
• Security: TPM 2.0, FIPS 140-2, TLS 1.3, IEEE 802.1X, SRTP, EAP-FAST, EAP-TLS
• Voice Features: AEC, AGC, VAD, PLC, CNG, adaptive jitter buffer, HD audio
• Compatibility: Cisco Unified Communications Manager, Cisco Webex, Asterisk, BroadWorks
• Additional Functions: Call recording, Do Not Disturb, Conference Mode, Music on Hold, Sleep Mode
• Material: 74% post-consumer recycled plastic, ABS polycarbonate
• Color: Carbon black
• Mounting: Desktop
• Certifications: ENERGY STAR® Certified
• Warranty: 1-Year Limited Warranty

UPC Number: 889728594967

Dimensions:

• Height: 1.9 inch
• Width: 8.9 inch
• Depth: 8.4 inch
• Weight: 2.13 lbs (34.14 oz)

Package Includes:

• Cisco Desk Phone 9851 (DP-9851-K9)
• Network Cable
• Quick Start Guide