Intercom for Android lets you place group calls with other Android and iOS (Infinite iNtercom) devices over Bluetooth and Wifi. Intercom for Android acts like a simple walkie talkie (two way radio) : No Internet needed. It only uses local communications. Minimum configuration. No registration. No accounts. No buddy list. Sometimes you can't talk directly to people around you: Motorbike communications. Rider-copilot. There are special headsets for all types of helmets. Inter vehicle communications (up to 100 meters / 238 feet). Motorbikes, cars, Sports (ski, cycling, hiking, climbing). Noisy environments (construction, concerts, etc).