PTToC or Press to Talk Over Cellular is an exciting new technology that offers some of the functionality of a two-way radio incorporated into a mobile device such as a phone, tablet or purpose-built rugged industrial unit. The technology uses the mobile telephone network to provide wide-area coverage across regions, state-wide or national. As with any technology however, there are some limitations and careful analysis of your communications needs must be undertaken to ensure the right outcome for your business, staff and customers.