– 3x Server 2012 R2 servers (Can be virtual machines)

1. Access Edge Server

2. Front End Server

3. Office Web App Server

– 4x Public IP’s

– Unified communication public certificate (4 names)

The Office Web App server is required to properly share PowerPoint presentation.

For PABX integration you would require another server that will be the mediation server. You would also need a SIP device (Usually provided by PABX company but has to be Lync capable)