SwitchboardFREE is an out-of-the-box and complete inbound call management system, that offers virtual phone numbers and professional call handling tools and provides all of the functionality of an enterprise-level PBX telephone system with none of the hassle or expense.
See the website:
https://www.switchboardfree.co.uk
Watch it work:
https://www.youtube.com/watch?v=-4jYJPPWCBY