SOLVED

Islands mode without Edge

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Contributor

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

8 Replies

@MTayal 

 

Without hybrid any external federation can only go to one platform, and you won't have any option to progressively move any users to the cloud service as no interop will exist between the two services.

@MTayal 

 

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)

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.

You can only get Federation working after you remove all Skype fir Business users and configure them in the Cloud as Teams Only and then reconfigure your Federation DNS Records.

Or another option is to use a different SIP domain for federation in Office 365 & Teams but that will be hard to communicate to users, partners and customers

@Johan Delimon 

 

Thanks!

Since they are no Edge currently, so there is no Federation enabled on SFB, looking to avoid setting up Edge

Hi @MTayal 

 

Yes you can enable the users to Teams Only Mode in Microsoft Teams. You can enable the users for Microsoft Teams and they can use both SFB On-prem and Teams Simultaneously with two separate infra. 

 

With Regards,

Satish U

best response confirmed by MTayal (Contributor)
Solution
Right Federation on Teams can be enabled but not on Skype for Business as no EDGE is present. Yes then two separate infra without interop SFB <> Teams could maybe work but Meeting Migration Service will not work either next to not being able to move contacts.

@Johan Delimon 

 

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?

 

Thoughts?

 

Sound about right?

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