Patent ID: 7672312

Claim:
A method, comprising: deciding, in one of a first communication network layer configured to establish a communication channel to a terminal and a second communication network layer based on Internet protocol and configured to establish a call to the terminal, that at least a part of a connection associated with the terminal is to be released, wherein the connection is a session, wherein the first communication network layer includes at least one of a gateway general packet radio service support node, a serving general packet radio service support node, and a radio access network; forwarding the decision from the one of the communication network layers in which the decision has been taken, to the other of the communication network layers via an interface between the first and second communication network layers; releasing an established session to the terminal communicating in the session; modifying a communication channel used for the session, wherein the modification affects at least one parameter of a set of parameters defining the connection, and the at least one parameter is the quality of service parameter guaranteed bit rate, and the guaranteed bit rate is modified to be set to zero; and monitoring an inactivity state of the terminal by the first communication network layer, wherein, when detecting an inactivity state, the decision concerning the release is taken by the first communication network layer, and forwarded from the first to the second communication network layer.