Yealink EXP50 Expansion Module for T5 Series Color Screen 20 Physical Keys The Yealink EXP50 Color-screen Expansion Module for Yealink T53/T53W/T54W/T57W/T58A/T58W IP phones, is designed to expand the functional capability of your SIP phone to a whole new level. It features a large 4.3-inch color-screen LCD, giving you a vivid visual experience. In addition, it provides you with a simple user interface and advanced call handling capabilities. For example, three pages of 20 flexible button shown on the display can be programmed up to 60 various features.
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