Internet roaming method

An Internet roaming method at a communication device of a provider having a plurality of access servers and an authentication server for communicating with the access servers for providing the Internet dialup connection services, the method comprising the steps of:

• enabling, between a communication device of the contracted company which a user has a contract with and a communication device of an uncontracted company which the user does not have a contract with, the user to make connection to the access server of the uncontracted company, by querying about information of the user to the authentication server of the contracted company by the authentication server of the uncontracted company when the user makes connection to an access server in the communication device of the uncontracted company;
• identifying whether the user is a contracted user or an uncontracted user by a domain name or a user name by the authentication server of the uncontracted company;
• and
• rejecting, by the server of the uncontracted company, connection by the uncontracted user to give priority to other users having contracts with the uncontracted company where the server of the uncontracted company identifies that the user is an uncontracted user and where a line occupancy rate is high based on the line occupancy rate owned by the communication device of the uncontracted company.

An Internet roaming method of a prepaid system at a communication device of a provider having a plurality of access servers and an authentication server for communicating with the access servers for to providing the Internet dialup connection services, comprising the steps of:

• enabling, between a communication device of the contracted company which a user has a contract with and a communication device of an uncontracted company which the user does not have a contract with, the user to make connection to the access server of the uncontracted company, by querying about information of the user to the authentication server of the contracted company by the authentication server of the uncontracted company when the user makes connection to an access server in the communication device of the uncontracted company;
• notifying, by the authentication server of the contracted company contracted by the user, the authentication server of the uncontracted company of remaining units indicating a period of time which the user is entitled to connection, when the user who has a contract of a prepaid system for prepaying fees for particular connection time makes connection to the uncontracted company which the user does not have a contract with;
• and
• notifying, by the authentication server of the uncontracted company, the authentication server of the contracted company of remaining units obtained by subtracting the period of the connection time by the user to the uncontracted company, when there is a request from the authentication server of the contracted company.