1)   Zetafax 2008
Zetafax allows you to send and receive faxes and SMS messages from your workstation, and can be integrated seamlessly into your business process applications for fast, automated faxing from the desktop or back office.

 2)   RFax 1.1
Java package/API to send and receive faxes. It can be used to send faxes from your java applications to any group 3 facsimile machine. It requires a class 1 faxmodem.

 3)   DEKSI Modem Pooling 1.2
DEKSI Modem Pooling (DMP) is an advanced, powerful, and feature rich client-server software system that allows you to share any serial (COM) port on a remote computer from your local computer via a TCP/IP network connection.

 4)   RFax for .NET 1.0
.NET component that sends and receives faxes using a fax modem. It has been developed in c-sharp and source code can be purchased.