Rate plan or tariff is one of the basic but very important term and entity on telecom field. This is also every day term. You can hear your family, you are speaking a lo toff, what you think, is it not cheap, are you on best rate plan?
So, there are 2 kinds of rate plans, prepaid and postpaid.
Prepaid are usually simplified and postpaid can have very huge structure.
For example, one simple prepaid rate plan,
All days in Week, 1 minute to all national networks is 0.1 Eur, rounding is 15/1.
This mean, that if you make call for 45 seconds to some person in national traffic, no international no roaming, you will need to pay next value:
45= 15 + 30*1
Rating charged price = 0.1/60*15 + 0.1/60*30
If the rounding is 60/1, for 45 seconds you will need to pay 0.1 Eur.