Yeastar S50 IP PBX Business Phone System

The Yeastar S50 IP PBX is a professional VoIP phone system built for small and medium-sized businesses seeking reliable, scalable, and feature-rich communication. Supporting up to 50 users and 25 concurrent calls, the S50 provides enterprise-grade telephony features in a compact 1U rackmount design. [1]

The system supports multiple connectivity options including SIP, PSTN, ISDN BRI, GSM/3G, and E1/T1/PRI, making it ideal for hybrid communication environments. Businesses can easily integrate traditional telephone lines with modern VoIP infrastructure. [4]

Powered by Yeastar’s advanced PBX platform, the S50 includes powerful communication features such as IVR, voicemail to email, fax to email, call recording, mobility extension, SIP trunks, paging/intercom, and music on hold. [3]

Its modular architecture allows businesses to add expansion cards for analog, BRI, GSM, and PRI interfaces, ensuring flexibility as communication requirements grow. The intuitive web-based management interface simplifies deployment, configuration, and maintenance.

 Key Features

1. Supports up to 50 users
2. 25 concurrent calls
3. 50 SIP trunks included
4. Modular expansion support
5. IVR & voicemail to email
6. Built-in call recording
7. GSM, FXO, BRI & PRI support
8. Rackmount 1U design