| 摘要 |
A method and a system for notifying a caller about the current state information of a callee are provided to change/apply subscriber information according to a query request related to the current state of a callee by a ring-back tone. A callee terminal(30) sets the current state of a callee. A subscriber information management server(100) updates the current state of the callee from the callee terminal(30). A ring-back tone server(200) changes/applies the present state information of the callee from the subscriber information management server(100) and transmits a sound source corresponding to the changed current state of the callee to a caller terminal(10). |
