"Every telephone has a number," Laura says, as Sakae licks her dangling ankle, "They're all different, so the telephone can be identified." Amestris hasn't got to the need for area codes yet, so Laura just tucks the phonepiece under against her cheek, and taps out the number for the phone Roy keeps in the upstairs study. "I'm calling Roy," she explains, listening to the phone make bell-like noises in her ear.