A method for providing a never-busy fax service wherein a customer's fax machine appears to be never busy to a caller. The method avoids loop-back charges which limit the usefulness of present implementations of never-busy fax and allow for a nation-wide never-busy fax service utilizing...http://www.google.com/patents/US5729595?utm_source=gb-gplus-sharePatent US5729595 - Never-busy facsimile service
