Everything about yeastar dubai, gsm gateway, analog voip gateway, pbx, module
TG400 is usually a compact four channels VoIP GSM gateway that connects GSM network with VoIP. it can be the ideal generation for modest and medium-sizedcorporations with heavy burdens of phone calls to cellular networks. the expense-saving Answer will make link cheaper and productive. With its integrated GSM and VoIP technologies, this device can