Previous Product Yeastar S2 Module (2 FXS) Yeastar S2 Module is a module with 2 FXS ports to terminate two analog telephone. Categories: Yeastar, Yeastar Module Description Description Opens in a new window Tweet This Product Opens in a new window Share on Facebook Opens in a new window Mail This Product Related products Read more Yeastar, P-Series IPPBXVideo Conferencing License For Yeastar P-series? Read more Yeastar, P-Series IPPBX, S-Series IPPBXLinkus Client User License Read more Yeastar ModuleYealink EX08 Expansion Board Read more Yeastar, Yeastar ModuleYeastar EX30 Expansion Board w/ E1/T1/PRI Port Read more Yeastar, P-Series IPPBX, S-Series IPPBXYeastar Remote Access Service Read more Yeastar, P-Series IPPBXYeastar P-Series P560 IPPBX Read more Yeastar, Yeastar ModuleYeastar 4G LTE Module Read more Yeastar, S-Series IPPBXYeastar S100 IPPBX System