The carrier and offers it to organizations for use on phones from any mobile operator. Toggle divides a phone's software into two environments, one for business use and one with an employee's regular personal apps and content. It's designed to keep business resources encrypted and safe from disruption by consumer apps, plus to help users shift back and forth between work and personal modes.

With Toggle 2.0, announced on Wednesday, users will be able to bring their own phones and tablets into the office and go on a corporate account for all their use of the device while in its work mode, AT&T spokesman Fletcher Cook said. As soon as they switch back into personal mode, their own account will go back into effect. That feature is currently only available with AT&T accounts, but other carriers can implement it if they choose, Cook said.

Toggle 2.0 also allows IT administrators to set up a customized, branded location called a ToggleHub, where users can choose and download applications approved for them. The previous version required administrators to push applications to the users' devices, Cook said. Once an application is on the device, IT can disable it if necessary. If a device is lost or stolen or the employee leaves the company, all the data can be removed.

AT&T used one mobile device management partner, Enterproid, to develop Toggle 1.0, and a different partner, OpenPeak, for the 2.0 version. Both remain available.

"It's two different things. One allows us to do a little bit more," Cook said. AT&T will continue to offer Toggle 1.0 and support customers that are on it now, he said.