It’s completely free and comes with no extra ads you'll hear the typical dialing phone sounds, it'll tell you if the contact you are calling is talking on Skype at that moment, and you can pick up and hang up all the calls you want.
Its creators affirm that it even offers an audio quality that’s better than that on a regular phone call. It uses VoIP technology to make calls between users and calls from its users to regular phones, both mobile and landline, all in a very simple and quick way that doesn’t require you to set-up or configure anything. The tool uses a peer-to-peer technology based on the well known file exchange service, Kazaa, to offer a robust and trustworthy call system, allowing you to talk to your friends with the same reliability and sound quality you would expect on a landline phone. A free tool that lets you talk to other users using text chats, voice and/or video conversations. Skype is the world's leading VoIP calling service.