Yeastar Digital Technology Co., Ltd. specializes in unified communications (UC) hardware and software that turn everyday computers into enterprise-grade voice endpoints. The company’s Windows catalogue centers on Linkus Desktop Client and Linkus Lite, two complementary softphone applications that overlay onto Yeastar on-premise or cloud PBX systems. Typical deployments include reception desks that need one-click transfer, call-center agents who rely on presence, chat, CRM pop-ups and call recording, and remote staff who want to avoid physical handsets yet retain HD voice, video meetings, conference drag-and-drop and voicemail-to-email. Both clients auto-provision with the central Yeastar PBX, synchronize corporate directories, support SIP and WebRTC codecs, and expose advanced call rules such as follow-me, forwarding and DND without extra licensing. Security is handled through TLS/SRTP encryption and SSO integration, while centralized firmware updates keep every endpoint aligned with new features released by Yeastar. The lightweight Lite edition strips out video and advanced queues for users who only need core telephony, whereas the full Desktop Client bundles screen-sharing, file transfer and meeting scheduling for power users. Yeastar software is available for free on get.nero.com, with downloads delivered through trusted Windows package sources like winget, always installing the latest versions and enabling batch installation of multiple applications.