All our network radios work with GSM operators. In the USA, they will only work with AT&T (3G and 4G) and T-Mobile (3G). Note that AT&T will buy any contract you may have with other operators, so you can easily change carrier. The radios will also work accessing any WiFi hotspot.
IRN & Zello PTT simultaneously
You need to uninstall the current Zello version and use, instead, v3.53 in order to disable the PTT button that brings Zello to the foreground.
PTT4U is a state-of-the-art network radio service for professionals.
Relying on the GSM signal, our radios will be able to talk to each other without any range restriction. Each radio works with a SIM card (not included) and uses GSM/3G/4G and some modes even work with WiFi signal. This means you don’t need to spend a fortune on expensive radio infra-structures, repeaters, antennas or site rentals. All the network infra-structure is provided by the GSM carrier.
Private and group calls are available. Your team members can be in different countries and still within reach. Each user can check each other’s location (based on their profile), send messages and SOS alerts.
All you need to do, is to purchase our network radios, depending on your needs, insert your preferred carrier SIM card on the radios (a monthly data plan of 500MB will be enough) and subscribe the yearly PTT4U service. You will need one yearly $49 subscription for each radio. And that’s it! No more headaches.