We use JOYFAX. It is Server/Client based fax software. It will use your Fax modem on any computer you want in the network. You buy Server and Number of clients you need (probably the number of computers using AC in the practice, so all the users can use fax features).
It will eleminate the need for any paper. All incoming and outgoing faxes are saved in the computer, and can be imported as PDF to AC.