Maybe someone can shed some light on this for me. A smart phone has a phone number ( a link to a land line) and has data capabilities so it can encode and decode the fax signal. why cant a smart phone just receive a fax save it as a PDF file and let you do what you what with it from there? I know there are online services and what not to use the web to send and receive but a smart phone should be smart enough to take the incoming signal and decode it and turn it into a pdf. It can be done with a pc and modem. The smart phone is not much different. It has a built in modem in a sense and has plenty of processing power and memory.