Kirisun Push To Talk Products powered by iTALKPTT Worldwide Communications

iTALKPTT uses the GSM cellular networks to offer customers unlimited, instant national and international communications at a fixed monthly fee.

iTALK offers the advantages of traditional two way radio systems at the press of a button. Features include individual, group and broadcast calling with the added advantage of reliable digital voice clarity.

iTALK terminals are built tough to meet harsh working enviroments. Intrinsically safe models will be available.

How does Push-to-Talk Work?

PTT switches a cellular device from full duplex mode, which is a mode where both parties can hear each other simultaneously, to half duplex mode, where only one party can speak whilst the other party listens. The party which pushed the PTT button has the floor until the PTT button is released.

The operation of the phone, when used in PTT mode, is very similar to two way communication achieved with “walkie-talkies” or other radios.