Telephone Consultation Fees

One of the biggst mistakes that I have made is to allow my customers total access… to me. I need to announce to my clients that I can no longer spend frivolous time trying to explain matters to them that they do not yet understand over the phone so that they can try to fix “simple” issues themselves.

Does anyone have a document or advice that they can share with me and the other members prepared to handle this? I’d love to hear any advice that I can get on this serious problem that may plauge you and your staff too.