The present invention relates to method for charging a user identified by a user identifier accessing a service in a LTE telecommunication network, said telecommunication network including a base station, a core network with an enhanced serving gateway function (SGW-LBO), and an IP network, the method including the steps of: °analysing all traffic packets originating from the user which connects to the network; °forwarding the traffic packet to the core network if the traffic packet or the user sending it does not satisfy the policy or the service is not available at the edge site; °offloading traffic packet outside the core network if it meets the policies configured in the serving gateway; °wherein the step of routing the traffic packet is done by the serving gateway; °sending from the serving gateway information about the offload traffic packets to the packet data network gateway located in the core network or to an Online Charging System.
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