50 Users

25 Concurrent Calls

Up to 8 FXS/FXO/BRI Ports

Up to 4 GSM/3G/4G Channel

[Title name=’Description’]

S50 is a compact and full-featured IP-PBX that comes in a 19’’ 1U rack-mountable chassis. The advanced module-based S50 is capable of supporting ISDN BRI, PSTN, and GSM connectivity, providing VoIP communications for up to 50 users.
[/Title][Title name=’Features’]


• 50 Users
• 25 Concurrent Calls
• Up to 8 FXS/FXO/BRI Ports
• Up to 4 GSM/3G/4G Channel


Protected from Internet hackers and 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 assures reliability over the years.

Easy to use

Save time with streamlined installation. Manage PBX on the intuitive web GUI.

Phone provisioning

Automatically provision phones
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[Title name=’Datasheet’]Yeastar S-Series Datasheet [/Title] [1234]