FIELD: mobile communications, possible use for providing services.
SUBSTANCE: in accordance to method, during registration by access network (GPRS), IP address is assigned to client by network of services (IMS) Public-ID (SIP-Public-ID), during registration, also marker (Token) is computed from random number and IP-address of client by means of encoding algorithm and is transferred together with IP address and Public-ID to client and clients are reminded that with transfer of service requests from client to service network client also transfers his recorded data such as IP address, Public-ID and marker, jointly transferred data are compared by service network to those recorded there or newly computed copies and in case of match requested service is performed.
EFFECT: increased trustworthiness of identification of user of services.
6 cl, 3 dwg
