My High-school A+ computer repair teacher has given me an assignment to find out the best way to setup a school support hot-line for the computer repair students. What I mean* the goal is to have a support hot-line that the community can call in and have the computer repair students troubleshoot what issues they may be having. I told her that something like skype would work fine, but I think that was a pretty selfish comment and not very well thought out.
i.e. Does anyone know phone networking very well and could help me find the cheapest and most effective way to set up multiple phones on a support hot-line type of enviroment?