Yeastar D30 Extension Expansion Module

Yeastar YST-D30 DSP Expansion Module for S100 and S300 The Yeastar D30 is a DSP module, used to expand the capacity of S-Series PBX. For each D30 module added, the max amount of users increased by 100, and concurrent calls increase by 30. Expand the power of your VoIP phone system without needing expensive hardware with this module. Yeastar YST-D30 Compatibility: Yeastar S100 and Yeastar S300