The present invention relates to methods and nodes for managing network resources in a policy and charging system of a communication network, as well as to a system comprising at least one of the described nodes, and to a computer program, which provide for optimizing the resources of a telecommunication network and to reduce memory usage. A method for managing network resources in a policy and charging system of a communication network comprises receiving at a second node an indication about a state of a server resource of a first node; determining whether or not an activity of a service session associated with a connection between a client and the second node is below an activity threshold; and if the activity is determined to be below the activity threshold, instructing a termination of a bearer resource assigned to the service session.