| 20080261562 | System and Method for Providing Bidirectional Message Communication Services with Portable Terminals - The present invention relates to a bidirectional message transmission system and method. The system performs first authentication on a first user based on user ID information provided by a first user terminal connected to the wired Internet, and performs second authentication in cooperation with a first portable terminal having a wireless telephone number provided by the first user terminal. The message provided by the first user terminal having undergone the first and second authentication is transmitted to at least two second users' terminals. The second users' terminals include a wireless terminal and a wired terminal. Therefore, the bidirectional communication service for concurrently transmitting the message to at least two other terminals is allowable based on stable and reliable authentication. | 10-23-2008 |
