What are kinds of machines?

Answer 1

These days there are 4 main types of fax machines:

1) standalone fax machines - these are the "traditional" type of fax machine that sit on a counter

2) multifunction machines - these are fax combined with a printer, scanner, or copier. These can be a small countertop unit all the way up to the size of a big office photocopier

3) online fax services - this is a fax service that is hosted like an webmail inbox - it sends and receives faxes for you (often through your email) and you log into it like a webmail inbox.

4) enterprise fax servers - these are a version of online fax services but run through a large organizaiton's IT department.