Yeastar D30 Module
Expands capacity by 100 extensions and 30 concurrent calls.
1 module on the S100 and up to 2 modules on the S300
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