Sign up for a Nexmo account for your API Key and API Secret if you don't already have one.

You'll need to add YOUR_API_KEY & YOUR_API_SECRET to nexmo.rb and you email address & password to app.rb.

If you're following along with the tutorial out check out the start-here branch

$ git clone [email protected]:ChrisGuzman/sinatra-caller-id.git

$ cd sinatra-caller-id/

$ gem install sinatra sinatra-contrib pony

$ ruby app.rb