def number(*args)
      number_to_dial = ''
      options = {}
      args.each do |arg|
        case arg
        when String
          number_to_dial = arg
        when Hash
          options.merge!(arg)
        else
          raise ArgumentError, 'dial expects String or Hash argument'
        end
      end

      output { @xml.Number(number_to_dial, options) }
    end
def number(*args)
      number_to_dial = ''
      options = {}
      args.each do |arg|
        case arg
        when String
          number_to_dial = arg
        when Hash
          options.merge!(arg)
        else
          raise ArgumentError, 'dial expects String or Hash argument'
        end
      end

      output { @xml.Number(number_to_dial, options) }
    end
The Number element specifies a phone number. The number element has two optional attributes: sendDigits and url.
 Number elements can only be nested in Dial verbs