Patent ID: 7715820

Claim:
A method for connecting a call in a system including a communication server and mobile stations during an emergency situation, the method comprising the steps of: transmitting, by a transmitting mobile station, a call connection request message for an emergency call connection to the communication sewer, the call connection request message including a password and a service code previously set to inform of an emergency call request; determining, by the communication sewer, whether the call connection request message is intended for the emergency call connection using the service code included in a received call connection request message when the call connection request message is received from the transmitting mobile station: determining, by the communication server, whether the call connection request message is valid using the password included in the received call connection request message if the call connection request message is intended for the emergency call connection; transmitting, by the communication server, the call connection request message including an identifier previously set to represent the emergency call connection to a receiving mobile station if the call connection request message is valid; determining, by the receiving mobile station, whether the call connection request message is intended for the emergency call connection using the identifier included in the call connection request message when the call connection request message is received from the communication server; and turning off, by the receiving mobile station, a speaker and a vibrator of the receiving mobile station, and automatically connecting an emergency call with the transmitting mobile station if the call connection request message is intended for the emergency call connection.