An old man and a phone

It is a story about an old man, who spends his daily life talking on the phone with his wife. A story about a flower, that the grandmother left to her husband and that he has to take care of. But in course of time he kills it because he doesn't know how to take care of it. Then he takes the flower and brings it to the grave of his wife and sows it. After that he returns to his home and the phone rings again. When he pick up the receiver we hear the voice of his wife. In the end we see a blooming flower on the woman's grave.