Yeastar Ex08 Expansion Card

Yeastar EX08 Expansion Card for S100 and S300 Series allows you to add 2 expansion cards to the Yeastar S100 Series, and add up to 3 expansion cards to the Yeastar S300 IP PBX System. It also supports up to four optional modules/8 ports, including O2, S2, B2, GSM, UMTS, and CDMA modules. This helps to boost efficiency in busy offices, thus save time and enhance the productivity of workers.