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Skype 3.6 and later on Windows and Skype 5.3 and later on Mac supports 720p high-definition video. Skype 5.8 and later on Windows and Skype 5.5 for Mac support 1080p high-definition video with the Logitech C920 webcam as well as the primary use of H.264 video codec instead of VP8 found in past versions.
Skype Technologies (also known as Skype Software, Skype Communications, Skype Inc., and Skype Limited) is a telecommunications company headquartered in Luxembourg City, Luxembourg, whose chief business is the manufacturing and marketing of the video chat and instant messaging computer software program Skype, and various Internet telephony services associated with it. [1]
Later, a mobile version was created for Windows Phones. In 2012, Skype introduced a new version for Windows 8 similar to the Windows Phone version. [103] On 7 July 2015, Skype modified the application to direct Windows users to download the desktop version, but it was set to continue working on Windows RT until October 2016. [104]
As of May 2018, the following Skype for Business clients are available: Windows (Pro and Enterprise only, can download free Skype for Business Basic client) and macOS (included with Microsoft 365) [20] Linux (provided by TEL.RED) [21] iOS (Microsoft app in iTunes app store; [22] alternative client provided by TEL.RED) [23]
The Skype protocol is a proprietary network used for Internet telephony. Its specifications are not publicly available, and all official applications based on the protocol are closed-source . It lacks interoperability with most Voice over IP (VoIP) networks, so it requires licensing from Skype for any integration.
Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server) is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences (audio, video and web conferencing) and PSTN connectivity through a third-party gateway or SIP trunk. [3]
In the United Arab Emirates, unlicensed VoIP services are blocked. VoIP technology used by various apps such as WhatsApp, Facebook, Viber and Snapchat are inoperative. The Telecommunications Regulatory Authority (TRA) blocked Skype in January 2018, explaining that the service is not licensed.
Skype does not document all communication activities. This lack of clarity as to content means that systems administrators cannot be sure what it is doing. (The combination of an invited and a reverse-engineered study taken together suggest Skype is not doing anything hostile) [citation needed]. Skype can be easily blocked by firewalls. [19]