택시타요(외부콜 태안)

* Navigation on state (starting on)
  - External application call
  - External phone call app Login
  - Accept an incoming call to a mobile phone outside of car
  - Turn off the outside call on board the vehicle -> Booking conditions change. Departure to guests

* Navigation off (start off)
  - External phone call app Login
  - When a successful login call external application
  - Accept an incoming call to a mobile phone
  - Board the vehicle, the start-up ON -> automatic reservation status changes. Departure to guests