With Yeastar S-Series, all the telephony interfaces are modular and customizable, S20 support 2 onboard module slots to custom FXS, FXO, ISDN BRI, GSM/3G/4G.
Advanced communication features to create effective business communication experience for small business, connecting to traditional lines, VoIP lines, cellular networks.
Feature-rich
A robust feature set that fulfils your various needs and cuts communication cost
Easy
Simple and intuitive Web-based configuration saves you loads of time
Reliable
Stable with advanced hardwareand software architecture
Interoperability
Interoperable with a broad list of softswitch, PBX, and IP-PBX like Elastix and Lync Server
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