One group the end of support deadline doesn't apply to immediately is GCC-High and Department of Defense cloud customers.

Microsoft has a description of changes that will happen for users when organizations move to Teams Only mode. After the upgrade, all new online users will be added in 'Teams Only' mode, ending the 'Coexistence Mode' available until then. Skype for Business Server users won't be impacted by the assisted upgrade process and will remain on-premises.Īfter the assisted upgrade, users sign out of Skype for Business Online and start using Teams for messaging, meetings and calling.

Skype for Business Online users in hybrid environment: The assisted upgrade will only switch Skype for Business Online users to Teams Only mode if they're not already in that mode.

When this policy is applied, all Skype for Business Online users will be placed in Teams Only mode. Usage and traffic In January 2011, after the release of video calling on the Skype client for iPhone, Skype reached a record 27 million simultaneous online.

Skype for Business Online-only: The assisted upgrade process will apply the TeamsUpgradeOverridePolicy policy to the tenant.

It will be different for those on Skype for Business Online-only and Skype for Business Online with hybrid environment:

The assisted upgrade experience should take about 24 hours for most customers.

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