> there, closed. But it sure ate that battery in 13 hours doing squat. >
The phone was actually doing quite a lot. Remember a phone needs to be able to accept INCOMING calls. Think about how hard this is. Someone many miles away wants to call you. He does not know where in the world you are. You could be in China or Europe who knows? Your phone connects to the nearest cell tower no mater where you are. It finds the cell tower with the best signal. So the incoming caller has to know which cell tower your phone found and it could be any tower on the entire planet. And worse if you are in a car the tower you are connected to can change every few minutes So for 13 hours your phone was communicating with the world-wide cell network saying "I'm am connected to tower Number 34566472 and I am available to receive incoming calls vie this tower. It was also busy testing the relative signal strength of the towers that might be near you. It was also using triangulation to three nearby towers to determine the phone geographic location, just in case you need to call 911. It figures out it location continuously so that it knows which 911 operations center to connect to. You don't want it calling the one near your house it yu are in a different city. Those to problems, accepting incoming calls and making outbound 911 calls were a hard problem to solve but now operate so transparently that you thought your phone was doing "nothing". -- Chris Albertson Redondo Beach, California ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
