How do harry ron and Hermione enter the ministry of magic through apparition?

Harry Potter and Arthur Weasley entered the Ministry of Magic via the public entrance of the Ministry of Magic which was a phone booth. Then Mr. Weasley dialled a number in a phone box (the number was 64224 which spells magic ). After a lady's voice asked some questions, Harry had to put on a badge with his name and status. Then the phone box began to sink into ground like an elevator, which then, reached the Autrium, i.e. the welcoming hall of the Ministry of Magic.

Obviously, the "elevator" was magically disguised as a typical out of order phone booth in England, London.