Skype the Dominican Republic, Estonia, Finland, France, Germany, Hong Kong, Hungary, India, Ireland, Japan, Mexico, Nepal, New Zealand, Poland, Romania, South Africa, South Korea, Sweden, Switzerland, Turkey, the Netherlands, the United Kingdom, and the United States. A Skype user can have local numbers in any of these countries, with calls to the number charged at the same rate as calls to fixed lines in the country. The countries on this growing list are referred to collectively as the SkypeIn Countries. Skype supports conference calls, video chats, and screen sharing between 25 people at a time for free. Skype does not provide
Skype protocol aimed at interoperability of file formats and protocols. In addition, some countries specifically permit a program to be copied for the purposes of reverse engineering. Skype protocol The Skype protocol is a proprietary Internet telephony network based on client-server architecture, used by Skype. The protocol's specifications have not been made publicly available by Skype and official applications using the protocol are closed-source. The Skype network is not interoperable with most other Voice over IP (VoIP) networks without proper licensing from Skype. Numerous attempts to study and/or reverse engineer the protocol have been undertaken to reveal the protocol, investigate security or