Yeastar Gsm Module For S Series Pbx

The Yeastar GSM Module is a plug-in expansion card designed to add GSM mobile connectivity to Yeastar S-Series PBX systems. It enables GSM trunking, allowing VoIP systems to make and receive calls over mobile networks. Ideal for businesses seeking mobile redundancy, cost-effective routing, or GSM fallback, this module integrates seamlessly with Yeastar S20, S50, S100, and S300 PBX models.