A fax server is used to send and receive fax messages from multiple computers or terminals. It runs on a server computer with one or more modems connected to a telephone line. It allows several computers in a local network send fax messages using only one phone line, which is connected to the computer server.
A fax server allows users to send fax messages cost efficiently since the Internet does not incur long distance charges when faxing overseas. It converts documents into fax messages before they are transmitted. Most models can also save and forward incoming fax messages.