Yealink EXP40 LCD Expansion Module (EXP40) Refurb
The EXP40 Expansion Module for the SIP-T46S, SIP-T46G, SIP-T48S and SIP-T48G, expanding the functional capability of your sip phone to a whole new level. It features a large graphic LCD. MPN: EXP40 Condition: Refurbished