Java tutorial
//package com.java2s; //License from project: Open Source License import android.content.Context; import android.content.Intent; import android.net.Uri; public class Main { public static void call(Context cxt, String number) { String phoneUri = "tel:"; phoneUri = phoneUri.concat(number); Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse(phoneUri)); cxt.startActivity(intent); } }