Let's face it, walkie-talkies are far from glamorous, but for large and small enterprises that rely on real-time communication, the WWII artifact remains an integral part of the workday. Now, AT&T has set forth on a journey to give its push-to-talk services a modern makeover, and it's recruiting a few partners to join the quest. In addition to providing PTT-enabled smartphones, the carrier will be testing IP-based technologies that offer workflow automation for tasks such as fleet management and dispatch. Additionally, the system will also offer integration with traditional radio systems such as PMR and