SIP-T57W-Skype for Business
• Optima HD voice
• 7" 1024 x 600 capacitive touch screen
• Yealink Noise Proof Technology
• Calendar, Skype for Business conferencing, CAP, Boss/Admin, Hot desking
• 1 USB 2.0 port
• Dual-port Gigabit Ethernet, PoE support
• Supports expansion modules
• Supports Office 365, and upgradability of device applications to Teams or SFB