Well, from what I have seen, it appears that I have to go through a
shared fax internet service, or have a seperate phone line/modem for
each user that needs to send/recieve faxes. I could create a mailing
list or a shared mailbox called "fax" to reach multiple recipients, but
then it wouldn't be able to distinguish who it was meant for.
As for the whitepaper, I haven't been able to find anything that talks
about setting up the FAX service on Server 2003, but a ton on SBS 2003.
It wasn't difficult to figure out, I just like to have a reference to
make sure I know all the options.