This is a way of communicating on the half-duplex communication line, includes receiving and transmitting devices (walkie-talkie) by the way of pressing the button for switching to the voice mode or transition to the listening mode. It works as a radio speaker; one can talk by pressing the button and can listen to a voice message by releasing the button.
Established in year 2000, C3Call Telecom Group hold licenses in Singapore, S Korea, Vietnam and Cambodia to provide telecommunications services to its partners. Today, we are interconnected to more than 100 telco partners worldwide.