The Yealink SIP-T42S IP phone is a versatile and dynamic superior voice communication tool. The new design offers a faster, more responsive interface and an overall better performance. The SIP-T42S can hold up to 12 IP phone lines and with its multiple programmable keys it enhances efficiency and productivity. Because of Yealink’s new Optima HD Voice Technology and wideband codec of Opus, Yealink can offer superb sound quality and crystal clear communications. Even better, the SIP-T42S IP phone is built with Gigabit Ethernet technology for rapid call handling. With the new and improved USB-port, The T42S exceeds an unparalleled functionality and expansibility, which comes ready for future Bluetooth, Wi-Fi and USB recording features. The new T4S design offer an elegant appearance and better collaboration.