Apr 16 2020 09:40 PM
Apr 16 2020 09:40 PM
We have SFB 2015 with basic functionalities.
While we are planning to Move to Teams, we don't want interop between SFB and Teams
On-premise AD is synced with AAD
for Islands Mode, can it work without Hybrid setup/without edge servers
and other than Contacts migration, any other limitation
Apr 17 2020 02:38 AM - edited Apr 17 2020 02:42 AM
A Skype for Business Hybrid setup requires EDGE Servers. Skype for Business Hybrid is required to have Teams and Skype to work with Federation. All Federation DNS Records must point to Skype for Business On-Prem and can only be removed or reconfigured when all users have been migrated to Microsoft Teams. This means all federation requests come into Skype for Business Server and are sent to the Online users over the Hybrid Connection. Also the Hybrid setup is required for the Skype for Business On-Prem & Teams Users to have Interop working between the platforms.
Additionally you will need to use TeamsOnly for the users that need to receive federation in Teams Client and no longer in Skype for Business. Any other Upgrade Mode including Islands Mode will receive federated & interop communication in the Skype for Business client (even for online users)
Apr 17 2020 05:05 AM
Agree, Can we go for Teams only Mode without impacting SFB Users (we don't want to add Edge servers and no interop is required), after accelerated setup of Teams,we will decommission SFB; will it be supported approach.
Apr 17 2020 05:12 AM
Apr 17 2020 09:45 AMSolution
Apr 17 2020 10:02 AM
Interesting topic. Let's suppose you have on premises SfB with no plans to migrate to the cloud but want to use Teams. If you have federation in place with your SfB on premises and want to use Teams with external organizations, then federation is not an option. You have to utilize guest access. Guest access may be fine for you but it will be a pain for the guests who have to sign in and out of their organizations tenant to sign into yours in order to communicate. One other thing, you won't have calendar access in your Teams if you don't go hybrid or at the least implement the commands to enable OAuth with your on premises exchange org. Can you implement OAuth for calendar access for your on premises Exchange mailbox if you have on premises SfB?
Sound about right?