A call to your toll free number is answered with a recorded message (e.g. “press 1 for accounts, press 2 for sales, 3 for warehouse, etc."). This means one toll free number can be used for several parts of your business, so you save money and staff time.
If the caller doesn't select an option you can nominate a number to transfer them to.
You can also link call prompting to geographic diversion so you can forward calls from a particular area, or time of day diversion so you can forward them at a particular time of day.
Any charges for the call start when the toll free number is answered, not when call prompting starts.