| 摘要 |
PURPOSE: A communication service providing apparatus using common authentication for supplying a communication service to a user is provided to allow a user to use a communication service of a communication service provider. CONSTITUTION: An authentication information providing unit(210) provides authentication information to a first service providing system. A common authentication information providing unit(220) provides common authentication information to the first service providing system. The common authentication information is transmitted to a second service system(200). A service receiving unit(230) supplies second service providing system to a user. |
