People use their cellular phones for so many things that the devices are often personal extensions. Usages like internet access, electronic messaging, texting, blogging, E-Books, social networking, music downloads, movie downloads and taking pictures all fall within the area of expected digital media distribution.

A cell phone works by connecting to cellular networks using radio waves. When making a call, the phone sends signals to the nearest cell tower, which then routes the call to its destination. Internet access is achieved through data connections.