Remember when Nextel revolutionized business communications? Today’s Push-to-Talk over Cellular (PoC) provides individual and group calling and location-based dispatching using existing 4G/5G ...

Besides PTT and voice calling over Nextel's network, The BlackBerry 7520 also supports Bluetooth, according to the company. As with previous BlackBerry devices, the 7520 supports always-on e-mail.

"The need to better manage company assets, combined with what is an increasingly mobile workforce makes location based services an important business requirement," Danny Bowman, Nextel's vice ...