Recital 15

A communication may include any naming, numbering or addressing information provided by the sender of a communication or the user of a connection to carry out the communication. Traffic data may include any translation of this information by the network over which the communication is transmitted for the purpose of carrying out the transmission. Traffic data may, inter alia, consist of data referring to the routing, duration, time or volume of a communication, to the protocol used, to the location of the terminal equipment of the sender or recipient, to the network on which the communication originates or terminates, to the beginning, end or duration of a connection. They may also consist of the format in which the communication is conveyed by the network.