Delphi:Delphi取得Modem的各个状态，先判断是否可以打开端口，判断有没有Model存在，若没有给出提示“没有发现Modem的存在１若存在则可以取得Modem的各个状态，比如清除发送、数据准备就绪、拨号指示、接受检测信号等。程序通过COM2串口连接调制解调器。

-Delphi: Delphi to obtain various state Modem, first determine whether you can open the port, there is no Model determine the presence, if not given prompt "did not find the presence of a Modem can be achieved if there is Modem each state, such as clear to send, data preparation ready, dialing instructions, accepting the detection signals. program through the COM2 serial port modem.