Yeastar 1-Channel GSM Module
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Yeastar YST-GSM is a module for giving your Yeastar IP-PBX a single GSM channel of cellular connectivity. This quad-band GSM radio works on the 850, 900, 1800 and 1900 MHz bands using a SIMCon GSM engine. Insert a SIM card into this module just as you would a cell phone.
Yeastar GSM Module Compatibility:
Yeastar S-Series
Yeastar MyPBX Standard
Yeastar MyPBX U100
Yeastar MyPBX U200
Yeastar MyPBX U500 Series