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.
MySipProvider is an Italian SIP traffic provider. We provide Wholesale A-Z with CLI. Our main target is business customer. Our company running since 2010 with 300 customers and 80 vendors.