GSM USSD調制解調器請求

Question

如何使用c＃通過GSM調制解調器發送USSD請求。

我希望能夠執行任意代碼和響應應該回來爲對象或字符串，我可以使用對正則表達式

Answer 1

這是我提取物，我與GSM通訊庫使用

public string SendUssdRequest(string request) 
    { 
    log.DebugFormat("Sending USSD Request {0}", request); 
    string result = ""; 
    try 
    { 
     IProtocol protocol = comm.GetProtocol(); 
     string gottenString = protocol.ExecAndReceiveMultiple("AT+CUSD=1," + request + ",15"); 
     result = gottenString; 
     int i = 0; 
     if (!gottenString.Contains("\r\n+CUSD: 2")) 
     { 
      bool receiving = false; 
      do 
      { 
       receiving = protocol.Receive(out gottenString); 
       result += gottenString; 
       ++i; 
      } while (receiving); 
     } 

     result = result.Replace("\r\n", ""); 

     result = result.Replace("+CUSD: 2,", ""); 
     result = result.Replace(",15", ""); 
     log.DebugFormat("{1} - USSD Response is: {0}", result,SenderNumber); 
     return result; 
    } 
    catch(Exception ex) 
    { 
     log.Error(ex); 
    } 
    finally 
    { 

     comm.ReleaseProtocol(); 
    } 
    return ""; 
}