How to top-up your Skype credit to make Skype to phone calls at low rates.How to make Skype - to - landline/mobile calls.How to make Skype - to - Skype calls and video calls.Learning how to use Skype on your Android.How to download Skype onto your Android through Google Play.Installing Skype and using it on your Android mobile device can be a little complicated, but luckily, we’re here to take you through it step-by-step. Skype is the biggest VoIP (Voice over Internet Protocol) service in the world, and it’s probably the easiest way to talk to your friends for free over the internet – through text, voice (just like a phone call) or even video.