Path: utzoo!attcan!uunet!husc6!think!ames!netsys!vector!nobody From: ektools!john@kodak.com (John H. Hall) Newsgroups: comp.dcom.telecom Subject: Another Cellular Phone Question Message-ID: Date: 6 Oct 88 17:26:15 GMT Sender: chip@vector.UUCP Reply-To: eckert!john@rutgers.edu (John H. Hall) Lines: 36 Approved: telecom-request@vector.uucp (USENET Telecom Moderator) X-TELECOM-Digest: volume 8, issue 154, message 4 X-Submissions-To: telecom@xx.lcs.mit.edu (Mailing List Coordinator) X-Administrivia-To: telecom-request@vector.uucp (USENET Telecom Moderator) In article westmark!dave@rutgers.edu (Dave Levenson) writes: >In article , weinstoc@SEI.CMU.EDU (Chuck Weinstock) writes: >> If I call a number associated with a cellular phone, how does the >> cellular phone operator know which phone to ring and where it is... > >When you dial a number assigned to a cellular mobile telephone, all >of the cell-sites in the mobile phone user's home region broadcast > ...description of how cellular phones work in their "home region" deleted ... Okay, what's a home region? My city? My state? My LATA? Any place in any cell run by the cellular service I subscribe to? While my home and business are stationary, my car is mobile. Assume I live in Rochester NY, and drive to Florida on vacation. If someone in Rochester calls me at my cellular phone: 1. How does it get routed to the cellular system (home region?) through which I happen to be driving? 2. Does the caller have any way of knowing that he's making (and presumably paying for) a long-distance call? The cellular vendors advertise that their phones can be used any place in the country (world?) that has cellular service. That obviously covers the turf of many different cellular systems. Who acts as the "long distance carrier" between cellular systems, and how do they keep the "directory" telling where my cellular phone is RIGHT NOW? -- John Hall, Supervisor: Software Tools Group, Product Software Engineering EASTMAN KODAK COMPANY, 901 Elmgrove Rd., Rochester, NY 14650, 716 726-9345 UUCP: {allegra, rutgers}!rochester!kodak!ektools!john ARPA: kodak!ektools!john@rochester.ARPA