R Responding to the increasingly high competition, a control mechanism from the telecommunications authority is needed to monitor healthy competition between the implementation and protection of the rights of telecommunications customers (customer safeguards). The purpose of writing this thesis is to evaluate the quality and services provided by operators to their customers. So that telecommunications operators do not ignore the rights of customers, each network must:meet the Service Quality Standards that have been set by the MinisterCommunication and Information contained in the Ministerial Regulation concerning Quality Standards for Basic Telephony Services. By conducting advertisements and evaluating the quality of operations and services of cellular mobile communication system operators, the quality of the performance of telecommunication operators will be known, so that data on the measurement results of operating performance parameters such as service performance audits, SMS service performance audits, success in making calls, failure rates can be obtained. (drop calls). With the availability of these data, regulators use it to analyze and compare the measurement results from independent consultants with reports made by each cellular telecommunications operator.