Sorry, I wasn't very clear. Whenever I click on the phone Icon, the game freezes up and stops responding. I can't click on anything and waiting doesn't seem to help, so I have to exit and fire the game up again. Sorry for the delay in getting back to you, its been a hectic few days.
Maybe it's an issue with variable initialization? Can you click the phone after loading a save or on a fresh save, or does it cause this problem every time no matter what?