Skype is a telecommunications application that provides video chat, voice call services, and instant messaging. Users can communicate over the Internet by voice using a microphone, video by using a webcam, and instant messaging over the Internet. A standard subscription allows users to make voice and video calls to other users within the Skype network for free. Additional features include the ability to buy credit to make calls to mobile and landline phones worldwide, send SMS messages, and use Skype's live translation services.