This is a little misleading. "Дзвони-" implies only contacting someone through the phone or, more archaically, to signal someone with a ring or another sound signal /the Medieval way of "telephoning"/. It doesn't mean to call by screaming or to name, which are possible meanings of the English 'to call'. This doesn't get clear from the provided example.

Oooh.

Хлопец - could be a boy, a fellow, a guy, not just the boyfriend. Reported, December 2018