Yeastar D30 Extension Expansion Module

Yeastar D30 Expansion DSP Module Yeastar D30 Expansion DSP Module for Yeastar series S100 and S300 Systems. Install on the motherboard to expand capacity by 100 extensions and 30 concurrent calls. The Yeastar D30 DSP (digital signal processor) module can be inserted into a Yeastar S100 or S300 IP-PBX, letting the VoIP PBX support an additional 100 users and 30 concurrent calls. Expand the power of your VoIP phone system without needing expensive hardware with this module