In this invention, a processor connected to a communication switching system i) intercepts or receives each facsimile message destined for a receiving party, ii) analyzes at least a portion of each message to collect, in addition to the called number, other routing information from the transmitted message,...http://www.google.de/patents/US5287199?utm_source=gb-gplus-sharePatent US5287199 - Facsimile message processing and routing system
