The $1 Onesuite incoming fax service (basic) comes with a phone number. You will be ask to choose an area code or city and your fax number will based on your choice. Not sure how they're able to profit with that kind of pricing but I guess they are hoping to convert some of those to upgrade to Onesuite Fax Plus which charges 2.5c per page sent.
Right now, you can only send fax through Onesuite fax program, if I can send through my email without the program (when I'm not using my computer) then it would be perfect. So there you go, make your hellofax able to send fax through email.