Call another Android user within a range of 100 meters using WiFi. Two modes are supported : Wireless LAN Router and WiFi Direct. WiFi Direct is a feature found on Android 4.0 or newer devices which establishes a direct Peer-to-Peer (P2P) connection between two devices without any intermediate access point. This allows short-range voice communication in the middle of nowhere. How it works : 1) WIRELESS LAN ROUTER ● Connect two phones via WiFi to the same LAN Router (access point) ● Open