Mobile telecommunications companies face the i ssues, including sever competition, and market saturation. Increasing customer loyalty has been introduced as a key solution, to guarantee the success of the business. Several researchers have explored th at customer satisfaction and switching barriers are influential elements of customer loyalty. They intr oduced several factor, which are essential to satisfy customers, and form switching barri ers. This study introduces m-co mmerce as a new opportunity that causes more loyalty of customers. In order to rationalize the use of m-commerce in the mobile telecommunication industry, a soluti on is proposed. This solution is based on the process of knowledge discovery in database, which descri bes phases of data gathering, data preprocessing, data transforming into profiles, and finally knowledge extracting. In a ddition, it is discussed how the solution can help enterprises to achieve the introduced factors. Therefore, the solution tends to an increase in customer satisfaction, and switching barrier, a nd hence customer loyalty. Finally, in order to present an applicable implementation of the solution, phase of data transforming is realized by using the XML.