Microsoft wants you to be able to use Office 365 Cloud PBX even if you still want to use your existing PSTN connections and the solution is a suite of virtual machines that enable a PSTN gateway on your premise.
In the past we have helped various customers that wanted a small Skype for Business (Lync) implementation and even wrote Technet article that dealt with the issues of small implementations. Interestingly the CCE is attempting to address a somewhat similar scenario and a somewhat different way: Have the Skype for Business Cloud PBX workload being handled by Office 365 Cloud PBX and a lite suite of VMs that essentially enable a gateway to connect to Office 365.
A question that might come up for very small sites: Why not use the VM’s to run Skype for Business Server itself ? Here are some reasons I think of immediately:
- Office 365 Cloud PBX also includes the Voicemail workload (which would be another server in Exchange UM if doing on premises setup)
- No need for an onsite SharePoint Server for hosting PowerPoint for meetings
- Ability to do Skype for Business Broadcast Meetings
- Get Office 365 resiliency you likely won’t have on a small Skype for Business Server setup
Go get it!
Plan for Skype4B CCE: