Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request From: john@bovine.ati.com (John Higdon) Newsgroups: comp.dcom.telecom Subject: Re: A Couple Tech Questions About Cellular Phones Message-ID: <9972@accuvax.nwu.edu> Date: 20 Jul 90 19:06:29 GMT Sender: news@accuvax.nwu.edu Reply-To: John Higdon Organization: Green Hills and Cows Lines: 30 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 10, Issue 502, Message 8 of 15 Doug Faunt N6TQS 415-688-8269 writes: > Do cellular nodes have emergency power? If so, for how long? > Obviously some are at CO's and will be up for a long time, but what > about my neighborhood site? Any "standard" answers? All GTE Mobilnet cell sites have emergency power. The outfit that installed their's installed mine. Cliff Yamamoto writes: > This may be > a rumor, but I've heard that *all* cellular phones have the capability > to have their microphones/xmitters activated by the switching office? Not true. When your unit is address by the system, a two way audio path is indeed enabled, but your transmitter is not turned on until you answer the call. > Secondly, I haven't had any dropped calls yet, but can anyone explain > the heuristic used for the following: say you are leaving a cell and > the cell you are approaching is completely tied up. If the target site is busy, the current site will hold on to you until there is an opening or until the call drops due to lack of signal. John Higdon | P. O. Box 7648 | +1 408 723 1395 john@bovine.ati.com | San Jose, CA 95150 | M o o !