Yeastar D30 Module
DSP Expanson Module for Yeastar S100 and S300 Systems. Install on the motherboard to expand capacity by 100 extensions and 30 concurrent calls.
Use up to 1 module on the S100 and up to 2 modules on the S300
D30 is a DSP module, used to expand the capacity of PBX. With a D30 module added, the extensions increase 100 and concurrent calls increase 30 additionally.
