[Freeswitch-users] Can FreeSWITCH be setup to look like a SIP carrier?

I am trying to determine if using FS would work for what I need. I have a training class where I have 10-15 students with SIP PBXs. I would like each student to have access to a SIP trunk. What I would like to do is have each student Register with FS using a 10 digit number. I have a SIP Trunk group with 6 call paths that I would like to have FS Register to the SIP provider. This will allow them to make outbound calls and I may have inbound calls hit the IVR to select the student. Thanks for any feedback.