Yeastar S300 VoIP PBX

Protected from Internet hackers, viruses with built-in firewall, TLS, SRTP, and more. Powered by Freescale ARM A9 industrial grade quad-core CPU processors. Free lifetime software/firmware upgrade assure reliability over the years. Save time with streamlined installation. Manage PBX on the intuitive web GUI. Automatically provision phones from Yealink, Snom, VTech and more. With Yeastar S-Series, all the telephony interfaces are modular and customizable, S300 allow 3 Expansion Boards and Telephony Modules to add telephony interfaces.

• 300 Users (expandable to 500)
• 60 Concurrent Calls (expandable to 120)
• Up to 24 FXS/FXO/BRI Ports
• Up to 6 GSM/3G/4G Channels
• Up