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Yeastar Module GSM 4G
enables 4G cellular data on SIM card, making the 4G LTE become the primary Internet connection for S-Series VoIP PBX. Supporting 3G/4G network standard, the 4G capable S-Series
VoIP PBX can register SIP trunks and make SIP calls with high speed built-in data. It is ideal for business needs of temporary locations, mobile offices,and places where a fixed-line broadband is not available.