A little while back flyingpigeon made some very nice looking dress-tops, dresses that he modified to be used as tops. There was something about this particular combination that would crash the game at certain times when using the phone. I know, that's makes no sense at all, but that's the way it was.
If the sim answering the phone is wearing this dress-top, that could be the problem.
If not, download and run the
Hack Conflict Detection Utility. If you have any conflicts listed, take a look to see if any of them specifically deal with phones. While you're at it, take a look to see if anything else looks like it could be a problem. Many "conflicts" listed are not a problem, so don't just assume they all are.
If wouldn't hurt to take a look at your Downloads using Clean Installer. Sort the downloads by type, then look through the packages listed that don't have a type. Many of these will be in red, which simply means it modifies global behaviors. See if you find any phone hacks that didn't show up with the HCDU. Also, particularly if you have downloaded any lots, delete any files with a long string of 32 numbers and letters for a package name. If you click on it and don't get an image of what it is (many are recolors) you can most likely delete it. These are hacks that were packaged and downloaded with a lot.
Hope this helps.
