1)   Vbuzzer Messenger 2.5.117
All in one instant messaging software that support VoIP, internet fax, RSS, video conferencing, and support Windows Live Messenger, Yahoo Messenger, AIM, and ICQ. VoIP features include free internet calls, low cost PC to phone, and phone to PC calls.

 2)   InterFAX 1.1.5
Interfax is a utility that lets you send faxes from your computer, using your internet connection. Simply type out the fax, enter the name who it's going to, enter the FULL international fax number and a subject for the fax and click on SEND.

 3)   OLfax 1.4.0
OLfax the Email-to-Fax Gateway for MS Outlook and AVM FRITZ! It is the perfect solution for companies which relay on communication via fax. Each user is able to receive incoming faxes via email and to respond to faxes via email.