Call Relay is a wise way of VoIP switched connection amongst various IP networks. Call Relay makes sure that the organization of the single central VoIP portal between IP networks, thus, makes sure that achieving VoIP connections through the segments of IP networks will not be an issue.
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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