A remote communication system includes: a first communication terminal configured to establish a call session for transmitting and receiving at least a voice with a target communication terminal, and to communicate with the target communication terminal; and a second communication terminal configured to participate in the call session. The second communication terminal provides a given function that is not limited to a telephone call to one of the first communication terminal and the target communication terminal, in response to a request from one of a user of the second communication terminal, the first communication terminal, and the target communication terminal.