The invention is a method and system for obtaining connection to a packet data network (14). The invention includes inputting a user request to a first network (10) which requests that the user (12) be authorized for connection to the packet data network through a second network; transmitting from the first network to the second network the user request and an authorization of payment to the second network by the first network for the user's use of the packet data network; transmitting from the second network to the first network authentication information granting the user authentication through the second network to the packet data network; and transmitting the authentication information from the first network to the user which informs the user that authentication to obtain connection to the packet data network has been granted.