The short answer is:  yes.  We do have a decent supply of generic listener type audio.  However, we always encourage our stations to "farm" local listeners and provide them to us.  It just sounds so much more authentic when a listener is from the local market.  If you are looking for a long-term, ongoing refreshing of listener audio, our resources will eventually drain to the point where we would be repeating some again, we highly recommend that you farm listener calls on your end.  With your permission, we often use client's listener audio submissions for other markets and vice versa, so it's sort of a community effort from all of our stations helping each other out with fresh listener audio.