The Yealink EXP43 Color Expansion Module for Yealink T43U/T46U/T48U IP Phones is designed to extend the functionality of your SIP phone to a whole new level. It features a large 4.3-inch LCD color screen that gives you a vivid visual experience. In addition, it provides you with a simple user interface and advanced call handling features. For example, three pages of 20 flexible keys shown on the display can be programmed with up to 60 different functions. The functionality of Yealink T43U/T46U/T48U IP Phones is also extended by the EXP43, you can set the provided multifunctional line keys as BLF, speed dial, call forwarding, transfer, call parking, call pickup, etc. The Yealink EXP43 Color Expansion Module is an ideal solution for receptionists,