Well, I kinda beat the game already, picking the ending where Kate dies. Now I can confirm that Kate does call you even after she dies, but whether or not it is a glitch - idk. She calls right after a call from Packie. I have experienced this through my first play through, but now in my second play through it does not seem like she has called once. Is there a way to manipulate the contact list to call her - if she will pick up at all? Or maybe a way to "force-trigger" Packie making that one call?