Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.sys.raspberry-pi > #9809
| From | mm0fmf <none@mailinator.com> |
|---|---|
| Newsgroups | comp.sys.raspberry-pi |
| Subject | Re: Tracker |
| References | <fe90551155.Alan.Adams@iyonix.adamshome.org.uk> <mvg8f1$khs$1@dont-email.me> <47db681155.Alan.Adams@iyonix.adamshome.org.uk> <irho1b93gqb7vk5mjeuk1v56nksqpr4oe7@4ax.com> <mvih2e$f8c$1@dont-email.me> |
| Message-ID | <71cTx.95583$JB7.26262@fx42.am4> (permalink) |
| Organization | virginmedia.com |
| Date | 2015-10-13 19:26 +0100 |
On 13/10/2015 09:59, dave wrote: > On 13/10/15 01:12, Dennis Lee Bieber wrote: > >> Given the nature of GSM, I suspect if a voice connection wouldn't get >> through, neither would an SMS message -- since voice data is digitized >> for >> GSM, no analog, it is just another data stream. > > AIUI, each GSM base station supports one control channel and one or more > data channels. The control channel is used to signal the mobiles when to > transmit, while the data channels carry voice. SMS is carried in spare > capacity within the control channel. > > The control channel is engineered to be more robust than the data > channels, to avoid a 'runaway' mobile transmitting when it shouldn't. > Hence the observation that text messages get through when voice fails. +1
Back to comp.sys.raspberry-pi | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Tracker Alan Adams <alan@adamshome.org.uk> - 2015-10-12 10:20 +0100
Re: Tracker Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-10-12 08:12 -0400
Re: Tracker Martin Gregorie <martin@address-in-sig.invalid> - 2015-10-12 16:38 +0000
Re: Tracker Martin Gregorie <martin@address-in-sig.invalid> - 2015-10-12 12:18 +0000
Re: Tracker Alan Adams <alan@adamshome.org.uk> - 2015-10-12 13:50 +0100
Re: Tracker ray carter <ray@zianet.com> - 2015-10-12 14:10 +0000
Re: Tracker Martin Gregorie <martin@address-in-sig.invalid> - 2015-10-12 17:23 +0000
Re: Tracker Alan Adams <alan@adamshome.org.uk> - 2015-10-12 18:41 +0100
Re: Tracker Martin Gregorie <martin@address-in-sig.invalid> - 2015-10-12 19:15 +0000
Re: Tracker Alan Adams <alan@adamshome.org.uk> - 2015-10-12 21:02 +0100
Re: Tracker mm0fmf <none@mailinator.com> - 2015-10-12 21:46 +0100
Re: Tracker Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-10-12 20:12 -0400
Re: Tracker dave <dave@cyw.uklinux.net> - 2015-10-13 09:59 +0100
Re: Tracker mm0fmf <none@mailinator.com> - 2015-10-13 19:26 +0100
Re: Tracker The Natural Philosopher <tnp@invalid.invalid> - 2015-10-12 19:24 +0100
Re: Tracker franssoa <franssoa@email.invalid> - 2015-10-13 14:55 +0200
csiph-web