Yealink EXP40 expansion board
The EXP40 Expansion Module for the SIP-T46G and SIP-T48G, expanding the functional capability of your sip phone to a whole new level. It features a large graphic LCD. Two pages of 20 flexible buttons are shown on the display can be programmed up to 40 various features, the productivity-enhancing features include BLF/BLA, speed dialing, call forward, transfer, park, pickup, etc.
-An exclusive collection which quality and detailed designs
-Rich visual experience with 160×320 graphic LCD
-20 physical keys each with a dual-color LED
-2 independent control keys are used for fast switch pages
-Stand with 2 adjustable angles