[pmorici]

I found out about ring-back tones by accident when I was trying to use Twilio to write an app to call an automated snow closing hotline record the message and then tweet if there was a closing. When ever I called with twilio the call _always_ failed and after contacting twilio support and they couldn't figure out what was going on either I just sort of put it on the back burner for a while. Then the next winter season rolled around again and a bunch of co-workers were complaining about how they couldn't call the snow closing hotline from their Google Voice enabled phones. Someone who worked with the people who had implemented the system went to ask how it worked and discovered it used a ring-back tone to play the message. At this point I realized why Twilio always thought the call failed since you can't start scripting a call in Twilio until it is actually answered.