Yeastar S-Series VoIP PBX are designed for SME with up to 500 users. It offers scalable modular design to support FXS/FXO/PSTN/BRI/PRI/GSM/3G connectivities.

Yeastar S-Series VoIP PBX offers a scalable solution that is easy to install and manage and that has been built to provide the ultimate performance quality. Targeted for small and medium size enterprises, the Yeastar S-series PBX can support a range of 20 to 300 users and 10 to 60 concurrent calls.