- Yealink HD Voice
• 2.4” 320 x 240-pixel color display with backlight
• Two-port 10/100M Ethernet Switch
• PoE support
• Opus codec support
• Up to 4 SIP accounts
• Local 5-way conferencing
• Support EHS Wireless Headset
• Unified Firmware
• Support YDMP/YMCS
• Stand with 2 adjustable angles
• Wall mountable
