A system for calculating the time of device change

A system (1) for calculating the frequency of device change and the time of device change of corporate customers—who get service from a telecom operator and have contracted devices—characterized by

• at least one database (2) which is configured to store GSM numbers of corporate customers, customer/company names, customer number, campaign information, device IMEI information, device information of corporate customers, launch date and network signal date, segment information of customers, customer authorized information;
• and
• at least one server (3) which is configured to be in communication with the database (2) and to realize data exchange with the database (2);
• to process the data included in the database (2);
• to calculate how often the corporate customers who are registered in the database (2) change their device;
• then to classify corporate customers according to the contract expiration period in accordance with their contract information;
• then to ensure that the time of device change is calculated considering the depreciation period of the smartphone by using signal date of device, launch date of phone, commencement date of contract;
• and to calculate at least information of how many contracted devices the customer has, how many of them are due for change, the brand tendency of customer, the frequency of phone change, and the total number of devices used on the lines, on customer basis in quantity;
• and to share it with the customer.