S20 VoIP PBXVoIP Solutions
![Yeastar S20 Yeastar S20](https://www.iconnecttechnologies.com/wp-content/uploads/2017/03/S20_left.jpg)
Description
- S20 is a stand-alone telephone system offering an unrivaled range of features to small business with less than 20 users.
- It supports 10 concurrent calls and various combinations of telephony ports including FXS, PSTN, ISDN BRI, and GSM/3G.