WhatsApp, Signal, and FB Messenger are free international calling, text, video apps. We recommend first trying WhatsApp. To start, download the above app onto your phone. In the app push and put my number in New Contacts. My phone number is (972-890-5290). It is best to message me first before calling so I can approve you as a friend. We also suggest work in the order they are listed unless you currently have one installed on your divice. If continued problems occur then please contact Nicholas at (214-263-1811) If I am in areas with no WiFi signal please leave a text message, and I will message back as soon as possible. You are very important to us, and being there for you is absolutely no problem and a priority. Our staff is in continual contact with one another to ensure we can serve you in any way we can.