Run multiable FreePBX on one Asterisk server

Can one Asterisk server run multiable FreePBX? I would like to have Virtual servers running on one Asterisk box. I would like to let that dept. run there own Virtual Asterisk server. i.e. there own “context”. The “Administation” module at this time doesn’t allow this to happen. The “Administation” module allows different groups to change or delete the other groups stuff. Also the groups has to share the same dial plan. We only use SIP or IAX ITSP. Each dept. has there own accounts.

Thanks, David Shaw