16 VoIP accounts Call hold, mute, DND, redial, call return, auto answer One-touch speed dial, hotline Call forward, call waiting, call transfer Group listening, emergency call Direct IP call without SIP proxy Ring tone selection/import/delete Set date time manually or automatically Dial plan, XML Browser, Action URL/URI RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035) Door phone integration Built-in dual band Wi-Fi: Network standard: IEEE802.11a/b/g/n/ac Transmission rate: Up to 433Mbps (dynamic) Frequency range: 2.4GHz/5.0GHz Built-in dual band Wi-Fi: Bluetooth headset Mobile contacts synchronisation Bluetooth call Content Sharing (via Yealink VCD) Three-way video conferencing Five-way audio/video mixed conferencing Standard HDMI output for monitor connection USB ports (2.0 compliant) for media and storage applications USB ports (3.0 compliant) for extending camera with USB3.0 cable Notification Center and Control Center Onscreen keyboard
