I don't do CL advertising whatsoever... but this is a pretty easy fix. Just setup one of those free voip accounts, make it sound all professional, and have it fwd to your cell.
Another option is to get one of those virtual secretaries. So that when they call to verify, your secretary will answer the call and verify anything, even if she/he has no idea what they are talking about. If they need to provide some type of reference code, just CC: the emails to the secretary's account. They do everything in real time.