I know there are quite a few of us running open source Kazoo who would like to auto provision phones but cannot purchase the service from 2600hz for various reasons (if you can buy from 2600hz, I think you should - their auto provisioner is really good). There is an open source solution out there, but it is not secure (Provisioner v4). I am interested in creating an open source auto provisioner, but I need the community's help to make it a reality. Right now I could really use help def