Yeastar Ex30 Expansion Module

Yeastar EX30 is an expansion module designed to enhance Yeastar S-Series IP PBX systems by adding a digital trunk interface. It provides 1 E1/T1/PRI port, enabling connection to traditional digital telephony networks and supporting up to 30 digital voice channels depending on configuration. The module is installed internally on compatible Yeastar systems such as S100 and S300, P560 and P570 allowing businesses to integrate VoIP systems with legacy telecom infrastructure. It supports multiple signaling protocols. EX30 is commonly used in small to medium enterprises that need reliable PSTN or ISDN connectivity alongside IP-based communication systems. It is fully modular, allowing system scalability by adding more expansion cards as business needs grow.