Yeastar O2 Module 2 FXO is compatible with MyPBX series, S-Series PBX, and Asterisk card.
Yeastar MyPBX O2 module enables the PBX system with 2 FXO ports which can be used for connecting a VoIP phone system to POTS (analog) telephone lines.
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Scalable and Modular S-Series VoIP PBX
Yeastar S-Series VoIP PBX provides flexible telephony interfaces combination while allowing for future scalability with the unique modular design. Besides the built-in rich SIP capabilities, S-Series lets you decide what types of extensions and physical trunks you need in your telephone system. When your business grows, adding more users and concurrent calls is also possible with S-Series.