Asterisk Server Assessment and Setup

We have an Asterisk Server that we can assign a public IP to for remote admin purposes. We would like to assess its current state and come up with a game plan on how to implement it as our main phone system for business hours and off-hours helpdesk. We need someone with VOIP, Linux, and Asterisk experience to assess the servers current state and help us design a plan to implement the server in our production environment.