This software acts as a virtual modem to all applications that need a modem and a physical line to work. This software actually distributes the data through the TCP/IP network.
Many old data-centric applications use direct modem connections to exchange data between Client and Server. Through the Internet, data could be easily sent and no dedicated connections are necessary. This software is a tool that will send out data through the TCP/IP network (private or the public Internet) and present an interface to these legacy applications simulating physical modems. The interface of this virtual modem even works with AT modem control commands or follows the TAPI standard. With the TCP/IP networks being everywhere, there is no need for dedicated physical lines or a corresponding modem. Communicating through the phone lines will prove to be costly as there may be long distance charges applicable, depending on which server you are connecting to.
The TCP/IP can provide added security too. While phone lines could be easily tapped, you could use a VPN, SSL and other secure tunneling in the TCP/IP setup to cloak your communication well. These virtual modems are an inexpensive solution to the problem. One very useful feature is an address book. It transparently translates phone numbers into IP addresses. Anywhere you have legacy applications that are useful even now; this solution could be used with this solution. This is a good product. It has many useful features. If you were looking for a product like this, this is one you could try out.