A cellular telephone system that is part of a call network, includes: a first, second, and at least a third cellular telephones; the first cellular telephone including a first button for activating a call to the second telephone and at least a second button for activating a call to the at least third telephone, the first telephone further including green and red color coding of each of the first button and at least the second button such that a closest one of either (a) the second telephone, or (b) a closest one of the at least a third telephone, will have a button indicated by green coding and other button(s) by red; and where the first telephone can query the call network for the location of said closest cellular telephone, closest measured by at least one of geographically, by driving time, and by driving distance.