Skype for Business – Cloud Connector Edition (CCE) is here



A few days ago Microsoft finally released the Cloud Connector Edition (CCE) for Skype for Business. The Cloud Connector Edition (CCE) is the latest update to Skype for Business, offering a hybrid solution to integrate local on-premise PBX with the Office 365 CloudPBX. For countries that don’t yet have the possibility to use telephony directly in Office 365 (E5 plan) (Only available in the USA, as of writing), the CCE is a great set of components, giving organizations the possibility to connect the local on-premise PSTN or SIP Trunk, with your Office 365 tenant (Skype for Business Online).

So what is CCE and what are the licensing aspects around it ?

So what is Skype for Business CCE ?

Skype for Business Cloud Connector Edition (CCE) is a hybrid offering that consists of a set of packaged Virtual Machines (VMs) that implement on-premises PSTN connectivity with Cloud PBX. They are downloaded from the Microsoft website, more about the later.

By deploying a minimal Skype for Business Server topology in a virtualized environment on-premise, users in your organization, whether located in the cloud or on premises, will be able to send and receive calls with landlines and mobile phones through the existing on-premises voice infrastructure.

The packaged Virtual Machines (VMs), consists of  four VMs, that are deployed and configured through a guided wizard, the four VMs are:

  1. Domain Controller
  2. Central Management Server (CMS)
  3. Mediation Server
  4. Edge Server

There is no dependency on existing AD infrastructure, it creates its own forest during deployment and the recommended placement of the servers would be in the DMZ. For companies that need High Availablity, the recommended way is to deploy 2 sets of CCEs (2 x 4 VMs, with 8 VMs in total).


The licensing for the four servers included in the Cloud Connector Edition (CCE) is free. But licenses are needed for the users, which is part of the Office 365 – E5 plan, which needs to be given to all users, that need to use this new Hybrid Voice configuration.

How to get started

It is recommended to read the planning documentation and configuration on TechNet:



Download the Cloud Connector Edition (CCE) here:

2 thoughts on “Skype for Business – Cloud Connector Edition (CCE) is here”

  1. Hi, I know this was a while ago, but I’m pretty sure you also need the Windows Server Datacentre license to cover the OS licensing in this, unless you get it integrated with an SBC provider Sonus or AudioCodes.

  2. I don’t get the point, apart from adding some cloudphilia terms to the SfB, what is the actual difference or advantage versus a Standard Edition deployment ?
    As I read this I said “Yay!” then after few seconds I said “Ow!” 🙁
    I thought it will be kind of VPN, then I said “ok” one virtual machine would be good, then Ow! 4 Virtual Machines ? That’s not cloud anymore. Better deploy a SE edition and not go as far as an E3 plan to get PSTN connectivity. The single-point-of-failures are still the same anyway in both scenarios. (talking about voice, of coursenot about presence and conferencing where they should be always online with O365).

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