AT&T brings enhanced push-to-talk app to iPhone
AT&T has unveiled an iOS app that turns the iPhone into a walkie-talkie for the business world.
Known as Enhanced Push-to-Talk (Enhanced PTT), the new app brings two-radio features to the iPhone 5 and 4S. With PTT, mobile users can talk to one person via a private call or a large number of people though a group call. And like a walkie-talkie, a phone equipped with the app can switch between talk and listen mode with the touch of a button.
The app supports up to 250 people, gearing it for certain types of workplaces and first responders, … Read more