• Yealink HD Voice
• 2.3” 132x64-pixel graphical LCD
• Two-port 10/100M Ethernet Switch
• Opus codec support
• One SIP account
• Local 5-way conferencing
• Support EHS Wireless Headset
• Unified Firmware
• Support YDMP/YMCS
• Stand with 2 adjustable angles
• Wall mountable

Audio Features
• HD voice: HD handset, HD speaker
• Smart Noise Filtering
• Wideband codec: Opus, G.722
• Narrowband codec: G.711(A/μ), G.723.1, G.729, G.729A, G.726, iLBC
• DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO
• Full-duplex hands-free speakerphone with AEC
• VAD, CNG, AEC, PLC, AJB, AGC

Phone Features
• One VoIP account
• Call hold, mute, DND
• One-touch speed dial, hotline
• Call forward, call waiting, call transfer
• Group listening, SMS, emergency call
• Redial, call return, auto answer
• Local 5-way conferencing
• Direct IP call without SIP proxy
• Ring tone selection/import/delete
• Set date time manually or automatically
• Dial plan
• XML Browser, action URL/URI
• Integrated screenshots
• RTCP-XR, VQ-RTCPXR
• Enhanced DSS Key

Display and Indicator
• 2.3” 132x64-pixel graphical LCD
• LED for call and message waiting indication
• Intuitive user interface with icons and soft keys
• Multilingual user interface
• Caller ID with name and number
• Power saving

Feature keys
• 6 features keys: transfer, message, headset, redial, mute, hands-free speakerphone
• 5 navigation keys
• Volume control keys

Interface
• 2 x RJ45 10/100M Ethernet ports
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port