My friend's soon-to-be-ex-husband sometimes attempts to call me dozens of times in a row. I have only spoken to him once before, and that was shortly after he and my friend married. Since they separated two weeks ago, he has been calling at odd hours (3 - 4 a.m.), and once even left a voicemail on my phone wanting me to pass along the message to his estranged wife that he was going to kill himself. I have never answered his calls, but I know it is him because my friend has warned me about what numbers he's using. She also will not accept his calls and is in fear for her safety. He has been convicted of a felony and from what I understand from my friend has other warrants out on him. She has encouraged me to pursue whatever courses of action are necessary against him to ensure the safety of myself and my family should he ever try to go beyond placing these annoying calls. I sincerely do worry for my safety, and I have two young daughters whose safety I fear for as well. What can I do to protect my family? Is what he's doing harassment?