Is there a service or device to pick up if there is a foreign phone on your property?
Today there is a huge problem with poachers, stock theft and crime in general in South Africa especially stock theft for my father as he is a farm owner and one of he's farms are close to a town where easily accessible for poachers to steels stock. Unfortunately tracking someones phone without consent is illegal without the proper permissions, a way around this is to create a personal device to detect if someone is on your property if they have there cellphone with them, without technically tracking them, In terms of size of property we are talking about a 1000 hectares of land.
Advice is more than welcome, thank you!
You might be able to use a nano-cell base station or possibly even a pico-cell station to automatically detect phones within a range of about 1000 feet with appropriate antennas. Ask the manufacturer if this function is available.