Yeastar provides on-premises PBX Phone System, Cloud PBX Platform, UC Softphone, and VoIP Gateways for SMBs to deliver UC solutions that connect everyone.
The Yeastar D30 DSP (digital signal processor) module can be inserted into a Yeastar 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.
Yeastar YST-D30 Compatibility:
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Yeastar EX08 is an expansion board with eight external RJ-11 ports and four internal card slots for adding compatible Yeastar modules. The EX08 fits into a Yeastar S100 or S300 IP-PBX to give custom functionality to your VoIP phone system. Available modules offer: 2 FXS, 2 FXO, 1 FXS/1 FXO, BRI, GSM..
Yeastar O2 Module (2FXO) is a module with 2 FXO ports to terminate two analog PSTN(POTS) lines. The O2 Module 2FXO is compatible with MyPBX series and S-Series PBX...
Yeastar SO Module with 1FXO+1FXS. The Yeastar SO Module is compatible with MyPBX series and S-Series PBX and has a unique PSTN Fallback Function enabling you to make/receive calls even when system powers down...