GSM/3G/4G Trunks Introduction

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

Maximum Supported GSM/3G/4G Module

Table 1.
PBX Model GSM/3G Module 4G Module (For Data) 4G Module (For Voice)
S412 2 1 2
S20 1 1 1
S50 4 1 4
S100 6 1 6
S300 6 1 6