Develop new pbx system modern interface

Develop a new pbx system voip with modern interface (need to have images to see) where we use didww for the numbers which are ready and setup call routing, music on hold, setup call conference and schedule and rest is all normal routing and dialing. Call flow is available. Freepbx or vicidial or any other system that is modern and easy to setup as it has to be ready end of the week.