A system for remote monitoring and control of remotely located equipment that minimizes wireless airtime includes an interface device coupled with the remote equipment. The interface device selectively communicates over a wireless network with a central server and/or a user device. Wireless communication...http://www.google.es/patents/US7228129?utm_source=gb-gplus-sharePatente US7228129 - Expert system for monitoring, recording and controlling remote equipment that minimizes wireless telephone airtime
Expert system for monitoring, recording and controlling remote equipment ...