METHOD OF SUPPLYING CALL STATE CONFIRMING SERVICE AND SYSTEM THEREOF

摘要

PURPOSE: A method of supplying a call state confirming service and a system thereof are provided to respond to a message transmitted from a control server at a set time or when a call is capable, if a receiver is not capable of receiving the call, in order to make the call with the receiver, thereby performing call reservation and immediately confirming whether the receiver is able to call. CONSTITUTION: A control server receives a calling message from a transmitting mobile terminal(S10). The control server retrieves whether to make a call by retrieving data interworked with a telephone number of a receiver(S20). If so, the control server starts the call by opening a speech channel, and transmits a call-disabled state to the transmitting mobile terminal if the call is disabled(S30). The transmitting mobile terminal makes a reservation for the call or a receiving mobile terminal inputs a call-able state(S40). When a call reservation time comes or the call-able state is inputted, the control server transmits a text message to the transmitting mobile terminal(S50). The transmitting mobile terminal transmits a response signal to make the call to the receiving mobile terminal(S60). If a response message is received from the receiving mobile terminal, the control server opens the speech channel(S70).