Part of the radio waves emitted by a mobile telephone handset is absorbed by the human head. The radio waves emitted by a GSM handset, (Global System for Mobile Communications) can have a peak power of 2 watts. An analogue phone has a maximum transmit power of 3.6 watts.
Other digital mobile technologies, such as CDMA [...]

Alright, you have your cell phone in hand, immediately you require a calling plan. With the competition being what it is now, you will want to consider what your best course of action is.
Do you purchase a Pay-As-You-Go plan, or do you decide from a variety of other plans? [...]

We’re come a long way from the first cell phones. The concept isn’t a new one; in fact in 1947 Douglas H.Ring and W. Rae Young, Bell Labs engineers, proposed hexagonal cells for mobile phones. The real launch of the first portable phones was in the early 80’s. At that time only the very wealthy [...]