EX30 has 1 onboard E1/T1/PRI port to expand 1 E1/T1/PRI trunk for S100 VoIP PBX, S300 VoIP PBX, P560 VoIP PBX, and P570 VoIP PBX. It allows users to flexibly customize IP PBX with unique modular design.
Yeastar S2 module is a module with 2 FXS ports to terminate two analog telephone or fax machines. It is compatible with Yeastar S-Series VoIP PBX and P-Series PBX System.
D30 is a DSP module, used to expand the capacity of PBX. With a D30 module added, the number of extensions increases by 100 and concurrent calls increases by 30 additionally.
Yeastar SO module is a module with one FXO port and one FXS port to offer a unique PSTN failover function, enabling you to make/receive calls even when system powers down.
