Easy Audio and Visual Communication The Yealink SIP-T58W is a simple-to-use smart business phone that provides an enriched HD audio and video calling experience for business professionals. This smart business phone enables productivity-enhancing visual communication with the ease of a standard phone. With the optional Yealink Bluetooth handset BTH58, users are free to move around when on a call no more missed calls when they leave their desk. With a range of up to 10 meters (30 feet), the Yealink Bluetooth handset offers more office flexibility for users. Based on the Android 9.0 operating system, the SIP-T58W adopts a new user interface, which is more concise and business, greatly improving user's work efficiency. Furthermore, the SIP-T58W integrates with IP video intercom systems from major vendors in the market, delivering true cost-efficiency to customers. Key Features: Runs Android 9.0 7 inch (1024 x 600) capacitive adjustable touch screen Supports Yealink Bluetooth Handset BTH58 (Optional) 720p30 HD video (with CAM50) Optimal HD audio, Yealink Noise Proof Technology Yealinks SDK (Software Development Kit) DoorPhone Features(Preview, One-button Open, Monitoring) Built-in Bluetooth 4.2 and Dual Band 2.4G/5G Wi-Fi 2 x USB 2.0 ports for USB headset, media and storage applications Up to 16 SIP accounts Up to 10-party audio conferencing Dual-port Gigabit Ethernet, supports PoE Wall mountable Supports up to 3 Expansion Module EXP50 Supports Yealink/Unify Square Device Management Platform Handset with hall switch