Skype is one of the most popular video and audio calling application owned by Microsoft Corporation. It is totally free to use between Skype users, i.e. you can make unlimited Skype-to-Skype calls all for free. Skype will charge you money for residential, business and international numbers only. The application offers tons of attractive features like free calling, voice and video calls, click to call, instant messaging, video messaging, send files, screen sharing and many more.

It uses its own Skype Protocol, which is a closed source protocol not publicly available. The main difference between Skype and standard VoIP clients is that it operates on a peer-to-peer model rather than the client–server model. The very popular SIP model of VoIP is also a peer-to-peer model but its implementation generally requires registration with a server.

It is a multi platform software available for most of the platforms to install. It supports, Windows, Linux, Mac, Android, iOS, Xbox and Alexa. You can freely download it from their official website here.

To make outgoing mobile and landline calls other then Skype you must subscribe to their paid plans. To see all their plans and availability at your region check it here.

You can also purchase an Skype Number to receive incoming calls other than Skype users. Skype Numbers are available in 26 countries which you can check here.

Skype Features

It is a feature rich software offering tons of functionalities, some of them are.

  • Free to use.
  • It offers its own VoIP services, hence you don’t need to subscribe to any third party VoIP service provider.
  • Low call rates for international and business calling.
  • Its a multi platform software, which you can use from anywhere.
  • Audio and HD video calling.
  • Text messaging.
  • Audio and video conference calls.
  • Call recording.
  • Screen sharing.
  • File sharing/transfer.
  • Skype translator.
  • Call forwarding.
  • Call recording.
  • Voicemail

It is a good option to use for VoIP calling, it is easy to use and requires no technical knowledge. You don’t need to subscribe any VoIP services as it is free and offers their own paid services for Non-Skype calling with comparatively lower rates.