Skype is a telecommunications application software product that speciallizes in providing video chat and voice calls between computers, tablets, mobile devices, the Xbox One console via the internet. Skype also provides instant messaging services. Skype is mostly free to use other than Skype Credit to call a landline of mobile phone number. Skype offers video conferecning calls for businesses. It was first released in 2003 by Niklas Zennstrom. In 2005, ebay bought Skype $2.6 billion. Later Microsoft bought Skype for $8.5 billion in 2011. Skype allows users to communicate over the Internet by voice, using a microphone, by video using a webcam and instant messages. Skype is integrated with Windows and is available as a desktop app on Windows.