Take advantage of ITP's low rates by calling internationally from your smartphone. You will be billed per minute. See our low international rates Have your home/office phone ring to your smartphone. 500 free USA minutes. Display your ITP phone number as your caller ID instead of your cell phone number. Many more features. Make your Smartphone an Extension of your office phone and stay in touch with your office from anywhere in the world as long as you have an internet connection on your smartphone. To use the ITP App you must be an existing ITP customer.    An ITP "Mobile VoIP Calling Plan" is Required To Use This Feature $9.99 - 500 Free Minutes Included Sign up for ITP today and download our cool App