My Foxy, long hair chi in avatar, sometimes hears and sometimes not. I have trained him and Bear the Pom, when I tapdance on the storm door glass with my fingernails they come running in or out. Its sets up a vibration which my vet says Foxy can feel in his body but if I call him he usually will not come. Strange but it works. Maybe tapping on a glass with a spoon, then give her a treat and she will learn to respond to this stimulant. She is just beautiful.