Modems have been in use by the private sector since the early 1960s. All modems use phone lines to transmit information, but not every modem is the same. As the name implies, a "fax modem" is intended ...
Stand-alone fax machines are so 1980s. And fax modems are so 1990s. VoIP is so now. But what happens when they meet, i.e., you want to send a stand-alone fax or a fax modem transmission over a VoIP ...