PCS stands for Personal Communications Service.
Digital technology is harder to clone or hack, and therefore more secure.
Because it is transmitted through dots and dashes and put together as conversation on the other end, there's much more security in your calls. It's like the difference between a scratchy, old LP and a clear, crisp CD recording. GSM is used in over 140 countries throughout the world and serves over 200 million subscribers. GSM is the most proven and advanced digital wireless technology in the world. You may also have a contract, and purchase the phone at a contracted price.