The Yealink EXP43 Color Expansion Module for Yealink T43U/T46U/T48U IP phones, is designed to expand the functional capability of your SIP phone to a whole new level. The functionality of Yealink T43U/T46U/T48U IP phones will also be extended by the EXP43, you can set the provided multifunctional line keys as BLF, speed dial, call forward, transfer, call park, call pickup, etc.
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