INTRAPLEX

radio broadcast transmission signal synchronizers for synchronizing the broadcasting of signals for multiple transmission sites; digital cross-connect switches and digital cross-connect servers for consolidation of communications services, namely, voice, data, local area network, video, program audio or other communications services over a single transmission line and for interconnecting and routing signals to and from multiple transmission lines; computer software for error monitoring, quality of service monitoring, network performance monitoring and service provisioning of communications networks; plug-in integrated circuit modules for editing communications signal transmissions by inserting, dropping and modifying voice, data, program, audio and video signals