Patent ID: 7299014

Claim:
A method of establishing a communication between an origination terminal and a destination terminal, comprising: wirelessly transmitting an originating message, including a sub-address corresponding to either a voice call or a video call, from the origination terminal to the destination terminal; receiving the originating message and judging by the destination terminal whether there is origination continuation message information in the originating message; determining whether a distinguishing function is set active in the destination terminal; distinguishing whether a call associated with the originating message is a video call or a voice call based on the sub-address if the distinguishing function is set and if an origination continuation message transmitted after the originating message is received at the destination terminal; and connecting the call as the voice call or the video call, between the origination terminal and the destination terminal, in accordance with the sub-address if the origination continuation message is received and the distinguishing function is set.