skype
How to contact a user via Skype
Skype is a Voice over Internet Protocol (VoIP) program that uses secure (end-end encrypted) P2P technology to bring high-quality voice communications to dispersed groups of people anywhere in the world. With Skype, you are able to make free voice calls to other people regardless of their location, assuming that they are also using Skype. Skype can also act as an instant messenger and you are able to send and receive files.
