Understanding the operation of mobile phone networks

Mobile phones have become as commonplace as pocket radios. There is no where you will go without finding someone with the palm tucked close to the ear receiving or making a call.
Mobile services differ greatly from the traditional telephony service in many respects. Here, we try to look at how cellular phones phones operate and how calls are made and received.
The first thing you will have to understand about mobile technology is mobile phones are essentially radios. All communication