With the help of Skype you can call to your friends or colleagues free of cost, and even call to any landlines and cell phones also. You can even make conference calls with three to more peoples with the help of Skype. You can also send instant messages, transfer your files and chat with your friends in video conference. You can call or send messages at anyplace of the world even at Day or Night time by using the using a debit-based user account system. You can even make unlimited calls or send messages by subscribing at limited countries only.
To run Skype on your PC or Mac computer is easy, all you need is an internet connection, a phone connected to transfer your calls and a webcam to make video calls. Skype is for Linux, Mac OS X computers and PDAs using Pocket PC.