During the initial stages of mobile phone technology, the number of telecom operators was very limited. But with the boom in this sector and increase in the number of mobile users, the telecom operators also grew exponentially. This resulted in a stiff competition in which only the companies with latest technology were able to survive.
The modification in technology also resulted in complexity in the services offered by the telecom sector. Therefore, the telecom companies needed an accurate system to calculate the phone, text and data related usage by the customers.