Some toilets along a highway Finnish not open them only if you send an SMS.
The public toilets are locked, but you can open them by sending the text message “OPEN” to the number on the door.
The door unlocks to let you relieve you. And as surprising as it may appear, this is not surcharged SMS, which means that the Finnish government does not earn money by offering this service.
But why lock the toilets if they can be opened with an SMS?
Naceron 