While both Microsoft products are part of Office 365 and feature messaging, presence, and voice and video communications, Skype for Business has additional features including PSTN calling and conferencing. Microsoft Teams is cloud-based collaboration software that has similar capabilities to Skype for Business. It is available as an on-premises server, known as Skype for Business Server, or a cloud-based service, known as Skype for Business Online. It can be licensed as a stand-alone product or as part of the Office 365 application suite. The platform is sometimes referred to as S4B, SFB, SfB and Skype4B. The Skype for Business client can also be configured in a Lync Server 2013 environment.

Clients can run on Windows operating systems, Android phones and tablets and Apple iOS devices.

Skype for Business can be deployed on premises, in the cloud or as a hybrid service. Skype for Business, formerly known as Microsoft Lync Server, is a unified communications ( UC) platform that integrates common channels of business communication and online meetings, including instant messaging ( IM), presence, voice over IP ( VoIP), voicemail, file transfers, video conferencing, web conferencing and Email.

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