The Yealink SIP-T57W with PSU is the same flagship desk phone as the standard T57W, packaged with a power supply unit for environments where PoE is not available. This makes it a practical choice for executives working from home, premium remote setups, or offices with older network infrastructure. The T57W features a 7-inch multi-touch color display, 16 SIP lines, built-in Wi-Fi and Bluetooth, USB connectivity, and Optima HD Voice. It is Yealink’s flagship SIP desk phone, designed for executives and power users who want the best possible experience at their desk. The large touchscreen makes navigation fast and intuitive, and the wireless features remove dependency on physical cables. Compatible with most major SIP platforms and UC systems, the T57W supports Yealink’s expansion modules for users who need additional line keys. The included PSU means location and infrastructure are no longer a constraint when deploying Yealink’s best phone to the people who need it most.