Xiamen, China / Jakarta, Indonesia – March 2019 Yeastar (www.yeastar.com), a leading provider of cloud-based and on-premises VoIP PBXs, and PT. Supranusa Sindata (www.sindata.net), an international provider of business intelligence solutions for the hospitality industry, today jointly announced that they have successfully completed interoperability testing between Yeastar award-winning S-Series VoIP PBX and PT. Supranusa Sindata’s most-known