Click the Back button to return to the article.
You Might Also Like
The most useful thing to know about the Global System for Mobile communications (GSM) is that it is an international standard. If you travel in Europe and many other parts of the world, GSM is the only type of cellular service available.
Do you like to talk on the phone in your underwear? Well, you'll need to quit that habit if you buy a video conferencing cell phone. The person on the other end can see you.