Skype is a telecommunications application that specializes in providing video chat and voice call services. Originally developed by Estonian developers and now owned by Microsoft, Skype allows users to communicate over the internet by voice using a microphone, video by using a webcam, and instant messaging. Skype also provides features such as file sharing, screen sharing, and conference calls, making it a versatile tool for personal and professional communication. Available on various platforms including Windows, macOS, Linux, Android, and iOS, Skype is widely used for both casual and business communication worldwide. Additionally, Skype for Business integrates with Microsoft Office and offers enterprise-grade security, manageability, and integration with other Microsoft products.