Skype for Business Online is on schedule to retire on July 31, 2021, with extensions of no more than three months available.
The online Skype for Business admin center is retiring starting Dec. 1, 2020, with equivalent functionality available in the Teams admin center.
Audio Conferencing is a separate Teams service that allows users to dial in to conventional Teams meetings.
Phone System enables PBX functionality within Teams to manage dial-in and dial-out telephony.
Chart summarizes the operation of the multiple coexistence modes available for Teams and Skype for Business.
Understanding how Teams and Skype for Business can coexist and interoperate is key for migration to Teams.
Skype for Business Online will retire on July 31, 2021, and Office 365 customers will be onboarded directly to Teams starting Sept. 1, 2019.
Chart shows Office 365 services that are on for enterprise tenancies by default.
Many Office 365 services are on by default; therefore, organizations should understand the impact of these offerings and how to turn them off.