Broadcasting messages to mobile stations within a geographic area

摘要: A dialable directory number is assigned to a particular location area (160) or cell (170). telecommunications user wanting transmit defined messages, such as text message, mobile stations (20) within that transmits signal encapsulating the message towards number. The transmitted then routed through conventional network and delivered MSC (40) providing service area. If specified associated with Public Land Mobile Network (PLMN), serving queries attached visitor register (VLR) (30) identify currently located area, communicates base station controller (BSC) (70) Thereinafter, received using short (SMS) messages (210) each of determined be geographic