I do dream about calls, some past/realistic, some completely off the wall that are unlikely to ever happen. I don't worry that I am crazy or obsessed. I have read that dreaming is your mind preparing its self for a possible situation, or processing what did happen. There is a good website by Montreal's Sacré-Coeur Hospital Dream and Nightmare Laboratory that is very informative if you get a chance to check it out.
http://www.jtkresearch.com/DreamLab/b_intro.asp?lang=e