How do I receive calls on my cellphone when I am on the other side of the US? No matter where one is, if your cellphone provider has service in the area, one will receive the call. My question is, does my cellphone's ring signal have to be sent from every cellphone tower in the US that is used by my provider? or is there some way of the system knowing exactly where I am without me having used the cellphone for several days? How does it work?