. Bell telephone magazine . reasing orientation of the Ameri-can public toward service-rated in-dustries will continue to add todemands for mobile communica-tions. The number of householdswith at least one car (80 per cent),the number with at least one tele-phone (90 per cent) and the per-centage of the labor force engagedin service-related industries (60 percent) offer a large and naturalmarket for the development of mo-bile communication services. Huge demand foreseen Our rough estimates for 27 majorurban areas with a combined popu-lation of 71 million persons indicatethat by the year 2000 t
. Bell telephone magazine . reasing orientation of the Ameri-can public toward service-rated in-dustries will continue to add todemands for mobile communica-tions. The number of householdswith at least one car (80 per cent),the number with at least one tele-phone (90 per cent) and the per-centage of the labor force engagedin service-related industries (60 percent) offer a large and naturalmarket for the development of mo-bile communication services. Huge demand foreseen Our rough estimates for 27 majorurban areas with a combined popu-lation of 71 million persons indicatethat by the year 2000 the combinedmarket in these cities would rangefrom a low of million users to ahigh of seven million. While theseestimates were limited to 27 cities,the proposed system would be in-stalled in many other areas through-out the country; on this basis thetotal nationwide market could bemuch larger. The cost of the mobile radiotele-phone—the unit installed in thevehicle—should help make mobiletelecommunications service ex-. tremely attractive to the generalpublic. To determine feasibility andcost. Bell Laboratories engineers,using modern but already availabletechnology, have developed a pro-totype radiotelephone set that canhandle 800 separate channels. Al-though we do not intend to designor manufacture mobile radiotele-phone units for this service, BellLaboratories specialists in the fieldspeculate that existing equipmentmanufacturers probably could re-duce the unit cost of mass-producedradiotelephone sets to a price wellbelow the $950 now estimated. It isquite possible, then, that people pur-chasing new cars would regard aradiotelephone set as a desirableand important accessory. New service dimension As proposed to the FCC, the BellSystem would perform these basicroles in implementing the system:design the system, including a com-patibility specification for the mo-bile unit; provide the control andswitching equipment as well as basestation transmitters and landlinefacilitie
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