A modular, reconfigurable, intelligent signal multiplexer for telecommunications purposes includes multiple feature cards. Each feature card contains an embedded microprocessor with associated RAM memory and flash ROM. The signal multiplexer processes digital inputs from a wide range of user equipment...http://www.google.de/patents/US7180854?utm_source=gb-gplus-sharePatent US7180854 - Route on failure method and apparatus for automatic rerouting network traffic through a reconfigurable, intelligent signal multiplexer upon failures of multiplexer components or of network spans
