Skype for Business Cloud PBX & Teleconferencing
The Office Blog Team has announced that new cloud PBX with PSTN calling, PSTN teleconferencing, and Skype Meeting Broadcast features are now in-preview, or coming later this year (depending on your location).
Note these additional details and a few caveats.
Note that the option to integrate with existing on-prem phone lines isn’t generally available yet. Also, the dial-out feature for now is only available to S4B users in the cloud; “hybrid” support isn’t out yet.