From Forum Nokia Wiki

ID	CS000956	Creation date	May 14, 2008
Platform	S60 3rd Edition, FP1	Tested on devices	Nokia N95 8GB
Category	Java ME	Subcategory	Telephony

Keywords (APIs, classes, methods, functions): javax.microedition.midlet.MIDlet, javax.microedition.midlet.MIDlet.platformRequest()

Overview

This snippet demonstrates how to make a phone call by using a platform request. The MIDlet constructs a menu item through which the user can call the specified number. After the platform request has been made, the user is prompted whether he or she wants to make a voice call, a video call, or an Internet call.

Source

import javax.microedition.io.ConnectionNotFoundException;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;

public class ExampleMIDlet extends MIDlet implements CommandListener {
    private Command callCommand;
    private Command exitCommand;
    private Form mainForm;
    // The phone number to call
    private final String PHONE_NUMBER = "0700123123";
 
    /**
     * Constructor. Constructs the object and initializes displayables.
     */
    public ExampleMIDlet() {
        mainForm = new Form("ExampleMIDlet");
 
        callCommand = new Command("Call", Command.SCREEN, 0);
        mainForm.addCommand(callCommand);
 
        exitCommand = new Command("Exit", Command.EXIT, 0);
        mainForm.addCommand(exitCommand);
 
        mainForm.setCommandListener(this);
    }
 
    /**
     * Calls the specified number.
     */
    private void call(String number) {
        try {
            platformRequest("tel:" + number);
        } catch (ConnectionNotFoundException ex) {
            // TODO: Exception handling
        }
    }
 
    /**
     * Called when the MIDlet is started.
     */
    public void startApp() {
        Display.getDisplay(this).setCurrent(mainForm);
    }
 
    // Other inherited methods omitted for brevity
    // ...
 
    /**
     * From CommandListener.
     * Called by the system to indicate that a command has been invoked on a
     * particular displayable.
     * @param command the command that was invoked
     * @param displayable the displayable where the command was invoked
     */
    public void commandAction(Command command, Displayable displayable) {
        if (command == callCommand) {
            call(PHONE_NUMBER);
        } else if (command == exitCommand) {
            // Exit the MIDlet
            destroyApp(true);
            notifyDestroyed();
        }
    }

Postconditions

The user can select Call to call the specified number. He or she may also select whether the call should be a voice call, a video call, or an Internet call.

See also

• CS000955 - Making a phone call using TextField