A method for supporting mobility of at least one mobile telecommunications terminal (5.1-5.3) in operative connection with a telecommunications network (2) having a plurality of telecommunications resources (3.1-3.6) accessible via a plurality of access networks (4.1-4.3) and associated access technologies (4.1a,b-4.3a,b) in operative connection with the telecommunications network (2), wherein the mobile telecommunications terminal (5.1-5.3) is provided with information about access networks (4.1-4.3) and access technologies (4.1a,b-4.3a,b) available at least at its present geographic location for choosing an access to the telecommunications network (2) via one of the respective access networks (4.1-4.3) and associated access technologies (4.1a,b-4.3a,b) in accordance with specifications of at least one telecommunications resource (3.1-3.6) requested by the mobile telecommunications terminal (5.1-5.3), and wherein the information are provided independently of the access networks (4.1-4.3) by means of a mobility service broker system (6) in operative connection with a plurality of access networks (4.1-4.3). Introduction of an operator independent broker system (6) leads to considerable advantages on the subscriber terminal side, e.g. for reasons of pricing and by limiting power consumption of the mobile telecommunications terminal (5.1-5.3).