You notice that you have missed a call from a phone number you do not recognize. They did not leave a message. Do you think: A) Hm, wrong number. B) Can't have been important if they didn't leave a message. C) If it's important, they'll call back. or D) I'll call that number right now!
You decide to call the number. The woman who answers the phone works for a company with which you've had no business before. You:
The receptionist explains that there are over 100 phones that show that number as their origin, and that unless you know the name of the person you need, she can't guess who it is. You:
So the second question should include an option for "Give just your name and ask if someone tried to call you." and the third should mention that the receptionist asks if you know a first name, last name, extension, department, or what the issue in question might be. But otherwise, this is a pretty fair representation of what I deal with several times an hour lately. People think that they are so important.