This is a process of connection between a computer and an ordinary phone. For example, one can call from Skype to a cell phone by dialing a specific number.
Real Tone Technologies Co., Ltd is a professional manufacturer of innovative VoIP equipments and unified network communication solutions. We offers a full line of VoIP products including All in one IP PBX phone system, VoIP gateways, E1/T1 PRI trunking
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