A data cap or bandwidth
cap refers to the limit on the amount of data provided to a customer by a service provider. The contractually guaranteed data volume refers to a fixed period of time and a fixed fee. If the agreed data transfer is exceeded, the data cap comes into effect. It usually refers to a certain amount of data that the customer can transfer in a fixed period of one month for a fixed fee. If the transferred amount of data exceeds the agreed amount of data, then the customer will receive a dedicated bill for the additional amount of data. These additional charges are higher than the agreed charges. Alternatively, the service provider can reduce the data rate provided.