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.
Khartoum Net Technologies is a registered company under the law of Texas , established in 1998 with a Branch office in Dubai U.A.E. Khartoum Net Technologies has built one of the most extensive integrated voice networks, representing a key step in our ong
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