FIELD: technology for automatic roaming between heterogeneous WLAN networks and/or GSM/GPRS/UMTS networks.
SUBSTANCE: for authentication mobile IP-node requests access to WLAN network from access station, mobile IP-node in response to request of access server transfers to access server the IMSI-identifier stored on SIM-card of mobile IP-unit, on basis of IMSI-identifier by means of information stored in SIM-bank of user data, logical IP-channel of WLAN data network is added to appropriate GSM-data for signal channels and GSM network data in accordance to user, and authentication of mobile IP-node is performed in HLR register and/or in VLR register of GSM network.
EFFECT: increased efficiency.
2 cl, 5 dwg
