Making Calls
Cellular telephones started being used in the 1980s. In contrast to landline telephones, they connect to the telephone network using radio waves and so can be moved around (be mobile). If you do move out of the range of any of the transmitters used for sending out these signals however, your call will get cut off. Modern cell phones not only allow you make calls, but also let you:

Making Calls using Mobiles and the Internet

There are many different ways that you pay to use telephones but it is normally more expensive to use a cellular phone than a landline phone. This is why VoiP the routing of calls through the Internet is fast becoming a popular alternative as the calls are free once you are online. Some services also allow you to use a webcam to take part in a video conference with other people.

Copyright S Haughton