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 is The best generation for compact and medium-sizedcorporations with significant burdens of phone calls to mobile networks. The cost-preserving Remedy would make relationship cheaper and efficient. In general, a VoIP GSM/3G/4G Gateway can assist you c