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AT&T launches Enhanced Push-to-Talk for iPhone with WiFi calling
When iOS has some sway with the corporate crowd, you can be sure that carriers with enterprise customers will notice -- AT&T certainly has. It just released a version of Enhanced Push-to-Talk for Apple's platform, letting workers with an iPhone 4S or iPhone 5 chat instantly with large groups. While there isn't much novelty for anyone who has tried push-to-talk before, the iOS app is notable as AT&T's first to support service over WiFi; poor cell reception won't be an excuse for an extended lunch break. EPTT still requires an AT&T subscription, but those who've just recently jumped ship from Sprint's soon-to-end iDEN service will be happy to hear that the app is free at the source link.
