iPTT P500:
2G/3G/4G LTE | WiFi | Bluetooth | Live GPS Location Tracking | Historical GPS Location Tracking (Snail Trail) | Panic/Alarm Button | Group/Individual calls | Call Log | Rugged and Robust | Multi-Network SIMs (giving you the benefit of all available Mobile Networks)
iPTT POC in Trucks
Testing PTT over Cellular from iPTT in trucks.
iPTT announces the iPTT P500 Hand Portable PTT over Cellular Radio
iPTT P500 4G LTE WiFi Bluetooth Panic/Alarm Button