3CX
3CX offers a complete, out-of-the-box Unified Communications solution. As an open standards software PBX, it has never been easier to ‘plug’ into and manage your phone system.
• Slash telco and communications costs
• Boost productivity with UC: Presence, Chat
• Work on the go: Android & iOS clients
• Integrated WebRTC Video Conferencing
• Improve Customer Service: Click2Call & CRM integration
• Install on-premise or deploy in your Cloud
With 3CX you can deploy a flexible and cost-effective Unified Communications solution on-premise on Windows or Linux or in the cloud with Google, Amazon, 1&1, OVH or Openstack, thus enabling the installation on your own cloud account whilst at the same time retaining control of your PBX.