Features of Skype "SkypeIn") allows a Skype user to receive calls to their Skype client (on whatever device) dialed from mobiles or landlines to a Skype-provided phone number. The number need not be in the same location as the user. For example, a user in San Francisco could create a local telephone number in London. Callers in London could then make a local call to reach that user (who answers on Skype in San Francisco). Skype offers numbers in Australia, Chile, Denmark, Estonia, Finland, France, Germany, Hong Kong, Hungary, Ireland, Italy, Republic of Korea, Malta, Mexico, Netherlands, New Zealand, Poland, Romania, South Africa,
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