Abstract: A parameter measurement system is provided, for measuring parameters accessible by mobile equipment, employed by a customer of a service provider, which communicates over a communication network. Communication network apparatus provides communication between the mobile equipment and the service provider. The system comprises an agent which includes measurement apparatus for taking measurement values of parameters of operation of the mobile equipment related to the customer's experience using the mobile equipment, and processing apparatus for generating data records of the measured parameters. The system further comprises a transmitter for transmitting the data records over the communication network to the service provider.