This is a method of providing a phone service to people over the Internet. This type of service moves the traditional phone switch off site and allows more than one company to use a particular switch.
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
Read more