Would it be possible to send a fax through Twilio's api?
If one could convert the image into a properly formatted audio sample, then pipe that audio through a phone call placed using Twilio's API, could it be "heard" and decoded into the proper image by the fax machine on the other end?
Faxing requires a lot of back and forth "talking" between sender and recipient, so it's not as easy as playing the right sound while connected to a fax machine.
Use Phaxio.com instead of Twilio.com.