Yeastar O2 Module (2fxo) Yst-O2

Yeastar O2 Module (2FXO) YST-O2 – Expand Your PBX with Analog Line Connectivity The Yeastar O2 Module (2FXO) YST-O2 is a dual FXO port module designed to seamlessly integrate two analog PSTN lines into your VoIP-based PBX system. Compatible with Yeastar MyPBX and S-Series PBX systems, this module makes it easy to bridge legacy telephony infrastructure with modern IP communications—ideal for businesses looking to maximize their existing telecom investment.