SIP-T54W

he Yealink T54W is a Linux based mid-level IP phone with a 4.3" pixel color display that is fully adjustable. The T54W supports 10 line keys and 16 SIP accounts and features built-in Bluetooth and Wi-Fi.
The Yealink T5 Series is a line of advanced telephones with future-rich features like next-generation HD Voice and ergonomically adjustable displays. The series includes the T53, T53W, T54W and the T57W. The phones provide advance collaboration features for the business user and help improve productivity with functions that are designed to make the workday more efficient. A large backlit display with high resolution and LED indicators to allow for the best viewing and navigation experience. Its fully adjustable display gives users the option to change the screen based on their needs at a variety of angles. This can be especially helpful when in a video call or when lighting conditions require a change of angle. The T5 Series can be used for content sharing and the higher end models support built-in Bluetooth and Wi-Fi  (all except for the T53).