
Clipart courtesy Clipartheaven.com
YES!
Although Ooma is somewhat discouraging on their website, you can indeed send faxes (people still do that?) with the Ooma service.
Add the prefix *99 to the outgoing Fax number. I also add a pause after the *99 for good measure. Many times, the pause is simply a comma (check your fax machine documentation), so that you would use something like this: *99,18881234567 to send to 1-888-123-4567.
If you still have trouble, try disabling “Error Correction Mode” (ECM) on your fax machine and/or lower the baud (transmission) rate. I did not have to do this with my Lexmark x8350 All-in-One.