1. Street and house number (example: street “Sentierone” number “18”).
2. If possible, additional information, such as a bar’s or a restaurant’s name,
   or if the house is located in an internal street, etc.
3. While the system starts searching a taxi for you,
   you will be asked to press the button 1 on your phone
   if you want your telephone number to be included in the RadioTaxi’s storage
   (so that the operator will answer faster the next time you call).