Yeastar S100 VoIP PBX Phone SystemThe Yeastar S20 VoIP PBX is a compact and scalable communication system designed for small businesses. It supports up to 20 users and 10 concurrent calls, with modular expansion options for analog, ISDN BRI, and GSM/3G/4G interfaces. Featuring built-in SIP capabilities, voicemail, call recording, and remote management, the S20 offers a reliable and cost-effective telephony solutionFEATURESSupports 100 users, expandable up to 200Handles 30 concurrent calls, expandable to 60Comes with 100 SIP trunk registrationsOptional modules allow expansion to 16 analog ports, 16 BRI, 6 GSM, and 2 E1/T1/J1 portsIncludes 10,000 minutes of voicemail storage, with option to expand further
