A system and method in a telecommunications network for billing a call placed by a user based on a reported traffic load in the network. The system comprises a control configured to control the at least one switch so that, if the power is switched on during a particular phase of the power, is the power is switched off during the opposite phase of the power, and if the power is switched off during a particular phase of the power, the power is switched on during the opposite phase of the power. This information will include the name of the payee, the numerical amount of the sale and the written amount of the sale. The sacrificial insulation layer and the oxide layer are then polished by CMP using the ceria-based slurry and using the nitride pattern as a stopper.