AT&T First U.S. Carrier to Offer Enhanced Push-to-Talk on iPhone Through New App Available to Business Customers

DALLAS, June 10, 2013 /PRNewswire/ -- AT&T* Enhanced Push-to-Talk (EPTT) is now available to AT&T business customers through a new app available for iPhone 5 and iPhone 4S. This marks the first time a U.S. carrier is offering push-to-talk capabilities on iPhone**. In...

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