the chart below shows the total number of mintues in billion of telephone calls in the UK divided into three categories

This

provided chart illustrates three different kinds of telephone calls which were calculated by the total number of

minutes

, in the UK from 1995 to 2002.

Overall

, it can be seen that two kinds of calls were performed by using a fixed line,

whereas

the

last

one was carried out by a mobile.

To begin

, in 1995 local calls were the most popular because they made above 70 billion

minutes

, which was a huge amount compared to others.

In addition

to that, local calls remained to increase slightly until they reached a peak, at 90 billion

minutes

, in 1999,

then

; they started to decline till they stood up, in 2002, at the same amount of

minutes

as it began. Regarding national and international calls , in 1995 people made around 37 million

minutes

of them. After, that these calls elevated gradually, and they stopped, at about 60 billion

minutes

, in 2002. So, the difference between them and local calls reduced to be only 10 million

minutes

.

Furthermore

, in 1995 the using of mobiles to make calls was very low in comparison to others, at about 2 million

minutes

, but its use rose slightly till a sudden increase, in 2002.