REVE PBX dialer is a mobile app for Android and other smartphones, offering a range of functionalities like VoIP Calls, cross-OS Instant Messaging and much more from data enabled mobile phones (3G/4G or WiFi). For using this app, end users will need a Username and Password. Features: VoIP Calls (voice and video) via Wifi, 3G / 4G, edge or UMTS.