Today’s Push-to-Talk over Cellular (PoC) provides individual and group calling and location-based dispatching using existing 4G/5G/LTE and Wi-Fi networks for fast and low-cost deployments.

Sanyo's first megapixel camera phone for the U.S. This high-end CDMA ... full-color external display, Push-To-Talk, and speakerphone.

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 ...