What did piggy's aunt do for living in lord of the flies?

In "Lord of the Flies," Piggy's aunt was a "telephone operator." This detail is mentioned in Chapter 1 of the novel, when Piggy explains to Ralph that his aunt owns a candy store. Piggy's aunt's profession as a telephone operator is significant as it highlights the contrast between the boys' previous civilized lives and their current situation of being stranded on the deserted island.