Many communication towers were built in isolated or rural area in order to provide better network coverage for rural area. Many of these towers location may take an hour or two to reach. br br Communication towers require semi-annual or annual maintenance service by contractor. Usually the Telco will send his workers, normally is the technician responsible holding the gate door keys. He has to drive for hours to the tower just to open the gate door for contractor to perform maintenance service. It is wasting human resources and time. br br Right now you can save time and money for this tedious job.