METHOD FOR NOTIFYING OF TELEPHONE STATE INFORMATION ON OTHER PARTY, SPECIALLY IN CONNECTION WITH AUTOMATICALLY CHANGING A TELEPHONE STATE OF OTHER PARTY REGISTERED IN A TELEPHONE STATE INFORMATION CONFIRM GROUP

摘要

PURPOSE: A method for notifying of telephone state information on other party is provided to automatically change telephone state information on other party registered in a telephone state information confirm group if a terminal state of the other party is changed, so that a user can easily confirm a telephone state of the other party. CONSTITUTION: If a power is on while the first terminal is powered off(S10), a message showing that the power is on is automatically transmitted to an MSC(S20). The MSC sends the power-on message of the first terminal to a terminal of other party included in a telephone state information confirm group(S30). Telephone state information of the first terminal included in the telephone state information confirm group of the other party's terminal is changed into a 'power-on' state according to the message(S40).