Skype is an excellent piece of software that allows users to call any other PC for free, or any phone number for a small fee. Upon installation, the user can add contacts to the contact list and start calling them seamlessly. The call quality is good even on slow Internet connections. Skype boasts a top-of-the-line end-to-end encryption for your calls, which makes it a secure VoIP client. This must-have application supports instant messaging, multi-way conference, video calling and file transfers. Its messenger incorporates a simple but powerful GUI (Graphical User Interface) that makes expressing yourself a piece of cake. The conference function of Skype is what really makes this program a must-have. Users can talk to each other simultaneously in real-time seamlessly for the first time in Internet history. Either for fun or work, up to 6 people can join any given conference. While in a conference, users can exchange files and documents. And last but not least, now you can see who are you talking with thanks to the Video calling feature. Skype is readily available for many platforms, including Microsoft Windows, Mac OSX, Linux, Palm OS, Windows Mobile, and so on. Many current mods have allowed devices like a Playstation 3, PSP, or even an Apple TV to use Skype. The possibilities are infinite. Skype is absolutely free for PC-to-PC calls and is ideal for international calling, since its fees are really low.
The version 2.5 boasts the following features: SMS sending (Skype 2.5 adds the long desired function of sending SMS messages to cell phones at really low fees); improved Skype-Out interface (users can now select countries for international calling from a drop-down menu, instead of researching country codes); Microsoft Outlook contact direct dial and Share groups functionality (now users can add contacts to their group and share it).