It looks like some people in the thread below have figured it out — we actually have this. You can start a chat both ways; the system will automatically recognize if this person is on Skype for Business or on Teams.
Thanks and let me know if you have any questions.
SuphatraKlaus Kupferschmid commented
we need this for federated communication (between 2 O365 Tenants) also!
The team is working on #2 (and has been for awhile). We will update as soon as we have more news.
Hey everyone! We have this already. Just click the ellipses next to the thread name and select “Hide”.
Note that we cannot provide a “hard delete” due to eDiscovery and other legal reasons.
Integration with Skype Consumer is no longer under review, and officially planned.
This feature request is still on in the backlog. No new updates available at this time.
The feature team is still reviewing, there is lots of discussion about this item and I hope to have a decision soon.
We acknowledge the demand for this capability and are exploring the best possible solutions to enable this.
We know you are patiently waiting for this feature. This feature is being implemented in stages. Fast tenant switching is currently in testing both internally and with early customers. We expect to release to the public in the Fall. I’ll post an update once it’s rolling out.
Full multi-tenant, multi-user support will be added after fast tenant switching.