Dial: Help (1988)
Italian erotic thriller tailored for Charlotte Lewis who had tons of media attention back in the day because she was discovered by Roman Polanski. He cast her in his flop Pirates (1986), and she did The Golden Child (1986) with Eddie Murphy afterwards.
Dial: Help was all about style over substance, about a cursed phone if memory serves. Awfully done fluff that was neither erotic or exciting. It did feature a few cool practical effects (not Charlotte Lewis).