Samsung phones follow their system family: DCS phones work on DCS systems, iDCS (Falcon) phones on iDCS systems, and OfficeServ SMT-i and ITP models on OfficeServ 7000-series. Digital models within DCS/iDCS interchange more freely than the IP models, which are tied to OfficeServ — check your phone's prefix (DCS, iDCS, SMT, ITP, DS) against your listing and you'll have your answer. We stock phones, replacement handsets, stands, paper labels, and DSS add-on consoles across all three generations. Samsung left the U.S. phone system business years ago; our tested, warrantied stock is how OfficeServ and DCS sites keep every desk working.