The Yealink EXP43 Color Expansion Module enhances Yealink T43U, T46U, and T48U IP phones by adding extensive multi-functional line key capabilities. Featuring a large 4.3-inch 272 x 480-pixel color LCD, the module delivers vivid color icons and a user-friendly interface. Users can access up to 60 programmable functions spread across three pages, each containing 20 physical keys equipped with dual-color LEDs. Additionally, three independent control keys with illuminated LEDs provide quick and easy page navigation. Supporting daisy-chaining of up to three modules, the EXP43 offers scalable expansion options. The adjustable stand with two angles ensures comfortable positioning on the desk. Its programmable keys support essential call-handling features including BLF, speed dial, call forward, transfer, call park, and call pickup, making it ideal for receptionists, administrative staff, and contact center agents managing high call volumes efficiently.