At 拨号

     　　　　 SerialPort ss_port = "com10";
                ss_port.Handshake = Handshake.RequestToSend;
                ss_port.BaudRate = 9600;
                ss_port.Parity = Parity.None;
                ss_port.DataBits = 8;
                ss_port.StopBits = StopBits.One;      

 

 format = "11888 7000/1 3000/1 3000/1 3000/{0} 14000/1 3000/{1}";
  　　　　

      TelHelp.Dial(ss_port, string.Format(format, accounts, cardpwd));

 

    public static string Dial(SerialPort port, string number)
        {
            string result = "";
            string[] keys = number.Trim().Split(' ');
            if (keys[0] == "")
            {
                throw new Exception("参数不正确");
            }
            else
            {

                try
                {
                    port.Open();
                    Console.WriteLine(keys[0]);
                    port.Write(string.Format("ATD{0};\r", keys[0]));
                    #region 循环拨号
                    for (int i = 1; i < keys.Length; i++)
                    {
                        string[] vts = keys[i].Split('/');
                        if (vts.Length != 2)//
                        {
                            break;
                        }

                        if (vts[1].Length > 1)//如果要拨的号码大于一个字符串
                        {
                            string vtskey = vts[1];
                            Console.WriteLine("停顿" + vts[0]);
                            Thread.Sleep(Convert.ToInt32(vts[0]));
                            string svts = "";
                            for (int j = 0; j < vtskey.Length; j++)
                            {

                                 svts = string.Format("AT+VTS={0}\r", vtskey[j]);
                                Console.WriteLine(svts);
                                port.Write(svts);
                                Thread.Sleep(400);
                               /* if (j == 0)
                                      svts = string.Format("AT+VTS={0};", vtskey[j]);
                                  else if (j < vtskey.Length - 1)
                                      svts += string.Format("+VTS={0};", vtskey[j]);
                                  else
                                      svts += string.Format("+VTS={0};\r", vtskey[j]);*/

                            }
                           if (!GetState(port))
                           {
                               throw new Exception("拨打中出错");
                           }
                         // Console.WriteLine(svts);
                          // port.Write(svts);

                        }
                        else //单个字符直接拨打
                        {
                            Console.WriteLine("停顿" + vts[0]);
                            Thread.Sleep(Convert.ToInt32(vts[0]));
                            port.Write(string.Format("AT+VTS={0}\r", vts[1]));
                            Console.WriteLine(vts[1]);
                            if (!GetState(port))
                            {
                                throw new Exception("拨打中出错");
                            }
                        }

                    }
                    Thread.Sleep(3000);
                  
                    #endregion 结束拨号
                    //拨号完成后等待20秒
                    Console.WriteLine("停顿20000毫秒");
                    Thread.Sleep(20000);
                    result = "dialed";
                    port.Write("ATH\r");
                    Thread.Sleep(1000);
                    port.Close();

                }
                catch
                {
                    result = "dialing";
                    Console.WriteLine("拨号出错" + port.PortName);
                    try
                    {
                        port.Close();
                    }
                    catch
                    {
                        Console.WriteLine("关闭端口出错" + port.PortName);
                    }

                }
            }
            return result;
        }