Contoso case study: Teams upgrade plan
In the decision to migrate from Skype for Business to Teams, Contoso wanted to provide an easy transition experience for end users. Instead of switching everyone to Teams at the same time, they decided to set up hybrid connectivity, and use the overlapping capabilities method to move users to Teams. This allowed users in Teams and Skype for Business on-premises to share presence and communicate. As users entered the pilot for Phone System, they were moved to Teams Only mode.
To understand fundamental concepts about upgrade, methods, and modes, Contoso read the following articles:
- Getting started with your Microsoft Teams upgrade
- Upgrade strategies for IT administrators
- Migration and interoperability guidance
Contoso also attended the Ignite 2019 session Designing your path from Skype for Business to Teams. Contoso learned about:
Fundamental concepts such as interoperability, federation, and upgrade behavior
Coexistence modes and management based on TeamsUpgradePolicy
End user experience for:
Chat and Calling
Meeting scheduling
Availability of collaboration functionality in Teams clients
To plan and configure hybrid connectivity, the first step in moving their on-premises environment to the cloud, Contoso read Plan hybrid connectivity and Configure hybrid connectivity to understand how to:
Configure their on-premises environment service to federate with Office 365.
Configure their on-premises environment to trust Office 365 and enable shared SIP address space with Office 365
Enable shared SIP address space in their Office 365 tenant.
Use Islands mode during the technical pilot.
Switch users to TeamsOnly mode once the user is enabled for Phone System. TeamsOnly mode is required for Calling Plan and Direct Routing.