outgoing_call.5.x.rb

require 'twilio-ruby'

# Get your Account Sid and Auth Token from twilio.com/console
# To set up environmental variables, see http://twil.io/secure
account_sid = ENV['TWILIO_ACCOUNT_SID']
auth_token = ENV['TWILIO_AUTH_TOKEN']

# set up a client to talk to the Twilio REST API
@client = Twilio::REST::Client.new(account_sid, auth_token)

call = @client.calls.create(
  to: '+15558675310',
  from: '+15017122661',
  url: 'http://demo.twilio.com/docs/voice.xml'
)
puts call.to