The mobile application for hospitality is designed to help maintenance workers at large hotels and other facilities communicate quickly about their ongoing tasks and urgent situations that require a response. It allows them to access and update work orders and service requests in real time, automatically escalate incidents and receive alerts when staff members don't respond. Although some of AT&T's smartphones include push-to-talk capability, the application doesn't make use of it, Glubochansky said.

The hosted applications are available now. Because it sells them to each business customer on a case-by-case basis, the carrier doesn't have listed prices for the offerings. AT&T has identified other common applications for certain industries and is planning more of such prepared applications, according to Glubochansky. Manufacturing is one area with some potential, he said.