"Please listen carefully as our menu options have changed." I've complained about this useless little IVR nugget before. The IVR script writer believes that misroutes are solely caused by callers' inattention to the recorded prompt - certainly not because the menu options are confusing or misleading.
The phrase is really annoying. Some brilliant individual created a working demo that makes that point far better than I can in writing on my blog. Call 888-583-2801 and enjoy. Thank you Brad Lehman for the pointer.