A method for processing data in a telecommunications network, the method being implemented in a first server of the telecommunications network and comprising the following steps: receiving a first session initiation request from a second server of a service provider, the first request comprising a service provider identifier; obtaining, from the service provider identifier, a set of technical parameters of the network adapted to a quality of service subscribed to by the service provider identified in the first request; generating at least one second session initiation request, the second request comprising the set of adapted technical parameters; transmitting said at least one second session initiation request to at least one resource control server of the telecommunications network.