Conecting with dial up to a remote system

Question

Im trying to create a little application that uses the computer's modem to dial a number and conects to a remote system, login to the system using a login and password that is stored in a local database and report if it conected succesfully or failed to connect.
I have worked before with java creating small applications that take data from a DB and allow it manipulation, but its completly unknow to me if there is an API that lets you use the ATDT comands to conect remotley and also I wouldn't know how to do the login and interpret if it was succesful or not.

Answer 1

Here's some code that may help...
I wrote it many years ago, when I started out with Java. It is compatible with Windows only and is capable of dialing an ISP... I suspect it could be modified to dial an arbitrary number.
import java.lang.System;
import java.lang.Runtime;
import java.lang.Exception;
import java.io.IOException;
public class Dialup
     //Connect-Disconnect commands
     private final String WINNT_CONNECT          = "rasdial.exe ";
     private final String WINNT_DISCONNECT     = "rasdial.exe /disconnect";
     private final String WIN9x_CONNECT          = "Rundll32.exe Rnaui.dll,RnaDial ";
//     private final String WIN9x_DISCONNECT     =  //doesn't seem to be possible!
     private String connectCommand;
     private String disconnectCommand;
     private boolean winnt;
      * Constructor
      * @param winnt <code>boolean</code> systems o/s
      * @param connectionProvide <code>String</code> users dialup connection provider
     public Dialup(boolean winnt, String connectionProvider)
          this.winnt = winnt;
          if (winnt)     //sets connect/disconnect commands under Windows NT
               connectCommand = WINNT_CONNECT + connectionProvider;
               disconnectCommand = WINNT_DISCONNECT;
          else          //sets connect/disconnect commands under Windows 9x
               connectCommand = WIN9x_CONNECT + connectionProvider;
//               disconnectCommand = WIN9X_DISCONNECT;
      * connect dials a connection
      * @return <code>boolean</code> dialup connection status
     public boolean connect()
          System.out.println("Establishing a dialup connection...");
          try
               //executes connection command and waits for its completion before continuing
               Runtime.getRuntime().exec(connectCommand).waitFor();     
          catch (Exception e)
               System.out.println("Dialup connection failed.");
               return false;
          System.out.println("Dialup connection established.");
          return true;
      * disconnect disconnects a connection
      * @return <code>boolean</code> dialup connection status
     public boolean disconnect()
          try
               //executes the disconnect command and waits for its completion before continuing
               if (winnt)
                    Runtime.getRuntime().exec(disconnectCommand).waitFor();
               else
                    ;     //do nothing (at this point it seems impossible to disconnect under win98)
          catch (Exception e)
               return false;
          System.out.println("Dialup connection disconnected");
          return true;
}