Each person needs to know that the booty call is nothing more than that. If there are expectations on either end or emotions attached to the act itself, then problems will arise. For the booty caller, that person needs to make sure that the callee is not expecting anything more from them. It is the responsibility of the caller to make it clear to the callee what their intentions are. Now many people may assume that it is the men that are making the booty calls, but hey, this is the 90's.
Women can call the booty just as well as the men.
Here, it may be even more important for the woman to make it a point to let the man know her intentions. Some men may assume that when a woman sleeps with them the woman is making some sort of commitment to them and that may not be the case. Regardless of who is making the call, you need to be fair. Just because YOU know where you stand doesn't mean the other person does. You need to get it out there before you put it in there.