I have over 75 acres of land in a rural community, and I have 5 employees that work on the farm. We have wired the whole area for wifi, so yes it is possible to use wifi on cellphones that are capable. The problem is that some of my employees do not like carrying their smart phone with them on the farm, and walkie talkies will not do the job for us. I am looking for cheap flip phones that will connect to wifi, but I do not know which flip phone to buy. The Tracfone LG440g would be an excellent choice, mainly because of price, however, even though Tracfone tells you it will work on wifi it does not from the research I have completed. Do you know a very cheap Android Phone that will work for me, that is a flip phone? The phone does not need texting, but at the same time a camera phone will be needed. Phones get dropped a lot, and lost etc... Getting a signal on any network is very weak at best in any area on the land. Only our wifi is dependable.