How can I have a fax and answering machine on the same line?

Episode 1200 (28:16)

"Old Geek" from The Bronx

Old Geek has issues with his answering/fax machine. Leo says he can set a fax machine and an answering machine for different rings, but if he has them on one line, he won't be able to tell the difference between a fax or a voice message. Some have a pass-through for a fax and if he doesn't get the tone, it will pass the call to the voicemail machine. If he doesn't have that, then he's out in the cold.

The best way to solve this is to get an eFax account and then he can just get the faxes sent to his email. How about Google Voice? Will it send faxes? Leo says no, but he can use it as his voicemail.