- Mobile World
- By Cosmin Vasile
- May 6th, 2015
Ultra-Rugged Sonim XP5 Coming Soon to AT&T
The smartphone features AT&T Enhanced Push-to-Talk
- Apple & Mac Blog
- By Filip Truta
- June 8th, 2013
iPhone Gets Enhanced Push-To-Talk App for Enterprise Use in the US
AT&T PTT app currently supports iPhone 5 and iPhone 4S devices