An access control method and arrangement for a mobile communications system

Automatically according to at least two to external system point (GGSN) in mobile system service node and from a mobile system or three selecting based designates (3): Memory mobile user the earphone data or a user in mobile communication system and service request the point selecting data (1) assigns, or designated according to the machine. The service node requests (4) is the point (GGSN) transmission further service according designated; the service quest comprising an indicating for selecting base, namely, the connecting place of the user automatically according to any other machine to designate according to the earphone. Therefore, the connecting point of differentiate and associated the service are receiver user request according to the earphone, and it is provided to secure problem. The request user-based point for selecting or based on any other unsafe machine, the connecting point of the position to the operation to ensure the safety. The operation further possibly comprising a rejection of service request.