PERSONAL LOCATOR AND CALL FORWARDING

摘要

Personal locator apparatus for advising central control and switching logic of present locations of respective ones of a plurality of users. The apparatus can be used to provide automatic recipient location switching in PBX type telephone systems (32), cellular telephone systems, and wide area computer networks. It also provides personnel location information. Each user-carried device may be a transmitting IR beacon, a passive reflecting IR beacon, or a readable device which must be inserted into a reader to register the user's location. The user-carried devices can also incorporate silent paging apparatus and can be used to advise a user of incoming cellular telephone calls so as to extend the in-use battery life of cellular telephones (40).