Here’s an interesting site — 800-Numbers.net gives you a list of many toll-free numbers for corporations and also gives you a preview of what to expect when you call. For example this is what you’ll get if you call Hertz:
The font there is probably too small to read (sorry), but it tells you what your options are when you get the voice mail.
Here is an explanation from the site:
Business Phone Number Directory with Phone Menu Transcriptions
Purpose of this site: This website contains a collection of 800 numbers for common services for many different companies. The goal is to help users or customers find a business 800 number that will provide access to the information they seek. If you are trying to look up a customer service representative, or just need to talk to someone, chances are that you need the correct 800 number.
Besides for simply listing out publicly available 800 numbers for each business, we have also included the type of answer you get when you call the number in question. Most of the time, a caller will be presented with a phone menu to choose from. We have provided a transcription of each menu. The transcription should make it easier for you to decide whether or not to call the number. Scan through the transcriptions before you call, and then you will know if the number at hand will provide you with what you want. The idea is to save you some time. So if you know what the menu will say before you call, then you wont waste time calling the wrong number. Alternatively, scanning through the menu transcriptions may help you determine what information you need to gather before calling.