Java tutorial
//package com.java2s; import android.app.Activity; import android.content.Intent; import android.net.Uri; public class Main { public static void doCall(Activity aty, String mobile) throws Exception { if (null != aty && null != mobile) { Intent phoneIntent = new Intent("android.intent.action.CALL", Uri.parse("tel:" + mobile)); phoneIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); aty.startActivity(phoneIntent); } } }