I also used bitware Fax and voicemail, which comes free with most modem cards. The fax software is a lite version, but I was impressed with the phone answering software and its ability to capture and print out faxes as they come in, without conflict from the voicemail software. You can also save your messages for later play and storage. I would suggest that you try it. You should also have additional software from your modem manufacturer, if you didn't get Bitware with it.
When installing bitware, you will first have to remove any other fax software you may already have on your computer, or you will find yourself locked out from using any of them. Outcast had a bad habit of putting FAX software on my computer everytime he upgraded me and I wouldn't find out about it until I developed problems months later when I tried to fax something. I think he finally got the message after I screamed at him nonstop for 20 minutes the last time he did it. Of course, you never discover these conflicts until you are up against a deadline and try to use it, then have to figure out the problem, so you can implement the solution!!!
Good luck.