GroupTalk for iPhone!

GroupTalk is a push-to-talk (PTT) app for the enterprise. It is an easy, quick and cost efficient service to implement. Features:- Instant group voice communication (PTT)- Private calls- Group calls- Great audio quality- Works on WiFi and 3G/4G networks- Very long standby time- High security with encryption and two factor authentication- Support for Bluetooth remote speaker microphones- Bluetooth 4.0 (low energy) PTT buttons support