FIELD: information technology.
SUBSTANCE: invention relates to communication methods, and, in particular, to the method, system and device for establishing association-control relations. The result is achieved through the suggested method for establishing association-control relations, comprising the following stages: the first network object acquires the address information of the second network object; the first network object sends its own address information to the second network object. In the same way the system, the access adapting unit and the IMS CS control function (ICCF) are provided for establishing association-control relations. In embodiments of the present invention, an access adapting unit such as a L-CAAF-n may know whether a user is an IMS centralised service (ICS) user and acquire the ICCF address information so that association-control relations may be established between the L-CAAF-n and the ICCF.
EFFECT: association-control relations are established in such a way that an access adapting unit, such as a local access adaptation function-network with channel commutation (CS) (L-CAAF-n), may establish association-control relations with ICCF for users of the centralised service of multimedia subsystem IP (IMS).
11 cl, 10 dwg
