gistfile1.rb

require "socket"  
tcp_socket = TCPSocket.new('thehost', 20000)  

active_call = true
options = { :choices => '1,2,3,4,5,6,7,8,9,0' }

while active_call == true do
  result = ask 'Please enter a command.', options
  if result.value == 0
    active_call = false
  else
    tcp_socket.send result.value
  end
end

say 'Thank you, goodbye.'

tcp_socket.close
hangup