Buying a Cellphone
Back in the real world, choosing a cellphone can be a complicated decision. Beware of slick salespeople offering "free" phones, often with bundled accessories and other freebies, such as televisions or computers. They require you to sign a service contract that lasts at least a year and can be difficult to get out of after that. The companies make up more than the cost of the phone in monthly service charges, and most people end up paying hundreds of dollars.
This isn't to say that all the cheap or free phones are necessarily a bad thing; it's standard practice in many countries for the operators to subsidize the cost of phones, and sometimes the service contracts offered are good value. But it is important to shop around. ...
Get Essential Guide to Wireless Communications Applications, The now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.