Enter 3CX. A software-based, open-standard phone system which offers complete UC features out of the box. Asterisk-based PBXs can be limiting in regards to the platform you can deploy them on; not the case with 3CX. Install on-premise on Windows or Linux. Prefer the cloud? 3CX’s PBX Express deployment tool allows you to host your PBX in YOUR cloud account.
Run on-premise: Windows or Linux
Self host with YOUR cloud account
Clients for Windows, Mac, iOS and Android
WebRTC based web conferencing