GSM/3G/4G Trunk Introduction

Yeastar S-Series VoIP PBX supports GSM/3G/4G trunk.

Maximum Supported GSM/3G/4G Module

PBX Model GSM/3G Module 4G Module (For Data) 4G Module (For Voice)
S412 Lite 2 1 2
S412 2 1 2
S20 1 1 1
S50 4 1 4
S100 6 1 6
S300 6 1 6
Note: Yeastar S-Series VoIP PBX V4.0 does not support 4G Module (For Data).