A program according to a fourth aspect of the present disclosure causes a computer to execute: receiving, via a service control device which authenticates an application server providing a service to a communication terminal, information relating to a transmittable data amount determined in the application server; and executing, by using the information relating to the transmittable data amount, traffic control on data transmitted from the communication terminal.
The present disclosure can provide a control device, a communication terminal, a control method, and a program which can control, in consideration of a traffic characteristic of an application operating between an application server and the communication terminal, traffic or a data amount transferred on a core network.