complete the preparation of the text message transmission a message appears on a display section of the terminal screen e g u201c transmission u201d prompting the sender to enter a text message transmission command not illustrated if the text message is transmitted the sender terminal after several seconds receives a response signal from a message transmission center step s 240 the sender terminal analyzes and judges whether the transmission succeeded based on this response message step s 250 the sender terminal displays a message to inform the sender whether the transmission succeeded if the text message transmission failed the sender terminal displays a message e g u201c transmission failed retransmission u201d asking the sender whether to retransmit the text message and waits for the sender 39 s command step s 260 if the sender commands the retransmission the sender terminal feeds back to the step s 240 and retransmits the prepared text message this retransmission process steps s 240 s 260 is repeated until the text message is successfully transmitted if the sender does not want the retransmission the terminal returns to the idle state if the transmission of the text message succeeds the sender terminal displays a message e g u201c transmission succeeded do any further receivers exist u201d asking the sender whether any further receivers shown on the display section are to receive the text message thereafter the sender terminal waits for the sender 39 s command step s 270 if no further receivers are intended to receive the text message the sender terminal terminates the text message transmission process and returns to the idle mode step s 290 however if.