CONSTANT calling, multiple times per day. Phone designates number as "Potential Spam" so I do not answer, and no one ever leaves a voicemail. If you attempt to call the number back, you get the automated message that "the number you have dialed is not in service" (or whatever it says). It is ABSOLUTELY RIDICULOUS how many calls I receive from this number, & its "sister #" 813-734-7944.