3CX PhoneSystem 11.0

3CX Phone System is a software-based IP PBX that replaces a traditional PBX and delivers employees the ability to make, receive and transfer calls.
3CX Phone System has an easy to use web based configuration interface, allowing you to easily maintain and fine tune your phone system. Proprietary phone systems often have difficult to use interfaces which are designed to allow only trained phone system installers to use it effectively.