Forget PSTN. As nations emerge from third world to second world status they don’t mess around with old technology. They move right to what is at the top of the heap.
In the case of Vietnam they are rapidly moving towards VoIP.
Forget PSTN. As nations emerge from third world to second world status they don’t mess around with old technology. They move right to what is at the top of the heap.
In the case of Vietnam they are rapidly moving towards VoIP.