Create call feature with Twilio/OpenVBX

Hello, I am looking for someone who can use the prewritten Twilio code and create me a simple phone application that will allow me to: 1. Buy a toll-free Twilio number. 2. From a browser window, make a call using that toll-free number. 3. Receive incoming calls to my computer at the toll free-number. 4. Route calls to another number easily with the use of a simple interface. 5. Have unanswered calls go to voicemail. From everything I have read it sounds like all of these features have already been coded by Twilio users. I need someone who can make sense of the PHP code and set it up for me. Thanks, Jennifer