H.323 Softswitch
It is the main device that captures and controls all the signals created by the entire system. It also supports multimedia: real-time audio, video and data information.
Asterisk & Skype are becoming merged entities, once technology is integrating features and functionality of one into others software, allowing customers to make Skype calls from their Asterisk phones.
HanoiTelecom
Hanoi Telecom is one of the earliest licensed VoIP providers in Vietnam and has best increased VoIP traffic. We have interconnections to all fixed and mobile network operators in Vietnam via a stable technical infrastructure. In addition, we build a flexi
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