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Cellular Phone Forum / Providers / Cingular / September 2003TDMA & E-911
For Cingular TDMA users- Why aren't the new TDMA phones E-911 compliant? Cingular has adopted a system that uses the towers and infrastructure to accomplish E911 and not use the phones themselves such as Sprint PCS has chosen. Also, TDMA is going bye-bye with Cingular as they change completely over to GSM so no new TDMA phones have come out in about a year.  SignatureChris Please respond on Usenet or Phonescoop.com wmbray@hotmail.com (William Bray) wrote in article <vl095eqei12s94@corp.supernews.com>: > For Cingular TDMA users- Why aren't the new TDMA phones E-911 compliant? > > [posted via phonescoop.com - free web access to the alt.cellular groups] >no new TDMA phones have come out in about a >year. What? > >no new TDMA phones have come out in about a > >year. > > What? The Nokia 3560 was announced 01/09/03 http://www.nokiausa.com/about/newsroom/article/1,2105,1005,00.html and is available for ATTWS and Cingular. http://www.phonescoop.com/phones/phone.php?id=249 John C. It will be obsolete very soon as GSM gets to all the Cingular markets within about a year. SignatureChris Please respond on Usenet or Phonescoop.com "John Cummings" <n4bkn.no@spam.bellsouth.net> wrote in article <sZ64b.718$mG4.456@bignews5.bellsouth.net>: > > > > >no new TDMA phones have come out in about a [quoted text clipped - 8 lines] > > John C. >It will be obsolete very soon as GSM gets to all the Cingular markets >within about a year. How many times must we go through this? TDMA is not going anywhere, at the very LEAST for the next 5 years. It may not be as prevalent, but it will still exist, and so will TDMA handsets. AMPS still exists, Inmarsat still exists, 44 mHz cordless phones still exist, bla bla bla, you get the idea. Obsolete to the fact that no new phones will be produced, not to the fact that the technology is going to disappear overnite. And guess what? There is no FCC protection for this technology like there is for AMPS. Cingular could shut down the TDMA system after they migrate all their customers to GSM and this is happening now with Cingular's policy of only selling GSM phones in converted TDMA markets. SignatureChris Please respond on Usenet or Phonescoop.com bones boy <stop@look-listen.com> wrote in article <3cq5lvcsb91v4o06tta6o203vl5ldhogi0@4ax.com>: > > >It will be obsolete very soon as GSM gets to all the Cingular markets [quoted text clipped - 6 lines] > AMPS still exists, Inmarsat still exists, 44 mHz cordless phones still > exist, bla bla bla, you get the idea. > Obsolete to the fact that no new phones will be produced, not to the > fact that the technology is going to disappear overnite. And guess > what? There is no FCC protection for this technology like there is for > AMPS. Cingular could shut down the TDMA system after they migrate all > their customers to GSM ...which will take YEARS to accomplish. > and this is happening now with Cingular's policy > of only selling GSM phones in converted TDMA markets. Unless you b*tch and moan, and then Cingular will do whatever it takes to keep a customer happy. Then there is the vast majority of customers who DON'T upgrade phones everytime a new ringtone comes out. When I was a Cingular dealer I was constantly surprised when a customer would walk in looking for a new battery for a phone they bought four or five years before and hadn't chaed equipment or rate plans in all that time. Cingular isn't going to mail all of those folks a Nokia 3395 tomorrow, or next year, just so they can shut off TDMA. >>Obsolete to the fact that no new phones will be produced, not to the >>fact that the technology is going to disappear overnite. And guess [quoted text clipped - 17 lines] > going to mail all of those folks a Nokia 3395 tomorrow, or next year, > just so they can shut off TDMA. At some point, I'd think it would make business sense to do eactly that, in lieu of the continuing costs of keeping TDMA around for the 'hangers on'. Signaturejer email reply - I am not a 'ten' ICQ = 35253273 "All that we do is touched with ocean, yet we remain on the shore of what we know." -- Richard Wilbur Ameritech in Detroit did just that when they did the AMPS/TDMA switchover. Everyone got a cheap TDMA phone during a one month period. Even though they still have AMPS, they wanted to switch most of the equipment over to TDMA. I wouldn't doubt if they would do that same thing when they decide that most of the equip. will be phased over to GSM. Still in the Grosse Pointe's on the east side where I live, I usually get TDMA service on my Nokia 6340i and yes I also get other carriers in my home area (ATTWS, T-Mobile, Microcell, Bell Mobility). SignatureChris Please respond on Usenet or Phonescoop.com jer <gdunn@airmail.ten> wrote in article <bj20t9$alc@library2.airnews.net>: > > >>Obsolete to the fact that no new phones will be produced, not to the [quoted text clipped - 27 lines] > "All that we do is touched with ocean, yet we remain on the shore of > what we know." -- Richard Wilbur > Ameritech in Detroit did just that when they did the AMPS/TDMA > switchover. Everyone got a cheap TDMA phone during a one month period. [quoted text clipped - 4 lines] > usually get TDMA service on my Nokia 6340i and yes I also get other > carriers in my home area (ATTWS, T-Mobile, Microcell, Bell Mobility). Well, sure. Back in the pre-Cingular days, when SBMS rolled out Digital Edge, cheap rate plans with upgraded (new) equipment created a tsunami from AMPS to TDMA. Corporate bean counters are always bashing numners around, and once in a while, they actually come up with something that makes business cents, despite the minor inconveniences to their clients. Signaturejer email reply - I am not a 'ten' ICQ = 35253273 "All that we do is touched with ocean, yet we remain on the shore of what we know." -- Richard Wilbur >>> Obsolete to the fact that no new phones will be produced, not to the >>> fact that the technology is going to disappear overnite. And guess [quoted text clipped - 21 lines] > in lieu of the continuing costs of keeping TDMA around for the 'hangers > on'. It will depend on other TDMA carriers, as well. Western Wireless is still expanding its TDMA network, and it only sell CDMA/AMPS services to its customers. The roaming revenue from Cingular and AT&T sometimes even exceeds the revenue from its own customers (take a look at their financial statements at www (dot) westernwirless (dot) com. When AT&T and Cingular finish the migration to GSM, Western Wireless is going to be a big loser, unless it can get to GSM before then. >>>> Obsolete to the fact that no new phones will be produced, not to the >>>> fact that the technology is going to disappear overnite. And guess [quoted text clipped - 29 lines] > and Cingular finish the migration to GSM, Western Wireless is going to > be a big loser, unless it can get to GSM before then. Why would they lose? So long as they maintain a strong AMPS network, a Cingular or AT&T GAIT phone will continue to keep their roaming coffers up to expected levels. I see no business reason for any wireless carrier to use another carrier's client list to determine the handset offerings in their own sales channels, and even less so with WLNP looming on the horizon. Signaturejer email reply - I am not a 'ten' ICQ = 35253273 "All that we do is touched with ocean, yet we remain on the shore of what we know." -- Richard Wilbur > For Cingular TDMA users- Why aren't the new TDMA phones E-911 compliant? Cingular's E-911 service is not dependent upon the handset design nor the OTA interface used. The system is geographically calibrated with a GPS overlay and street address maps. And once the system is fully implemented, things will settle down a bit. Signaturejer email reply - I am not a 'ten' ICQ = 35253273 "All that we do is touched with ocean, yet we remain on the shore of what we know." -- Richard Wilbur While it may not be in the TDMA handset there is a chip in all new GSM handsets. CDMA handsets also have GPS chips in them as well. jer <gdunn@airmail.ten> wrote in article <biqjmu$6i@library1.airnews.net>: > > For Cingular TDMA users- Why aren't the new TDMA phones E-911 compliant? > [quoted text clipped - 7 lines] > "All that we do is touched with ocean, yet we remain on the shore of > what we know." -- Richard Wilbur There is no such thing as a "GPS chip in all new GSM handsets." E-911 location is done by base stations, not the phone. See <http://www.trueposition.com/Press/news_06.20.03_e911demo.html>. p.s. Please DON'T switch posting styles in mid-thread -- it's confusing and rude. >While it may not be in the TDMA handset there is a chip in all new GSM >handsets. CDMA handsets also have GPS chips in them as well. [quoted text clipped - 15 lines] > >[posted via phonescoop.com - free web access to the alt.cellular groups] SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular > While it may not be in the TDMA handset there is a chip in all new GSM > handsets. CDMA handsets also have GPS chips in them as well. I am unaware of any chipset in handsets, not that they don't exist. Requiring GPS from a handset to fix it's location for E-911 service doesn't work well in confined or overhead locations, ie. parking garages, buildings, bridges, wet trees, etc. Using GPS for a timing sync at the BTS, and then correlating the handset's location from timing terrestrial signal distance seems to make much more sense on a public network. Signaturejer email reply - I am not a 'ten' ICQ = 35253273 "All that we do is touched with ocean, yet we remain on the shore of what we know." -- Richard Wilbur > While it may not be in the TDMA handset there is a chip in all new GSM > handsets. CDMA handsets also have GPS chips in them as well. Simply not true. Some GSM phones have E-OTD technology, but that has nothing to do with GPS, and it's irrelevant since Cingular has dropped E-OTD in favor of U-TDOA, which requires nothing special on the phone at all. New CDMA phones do have a type of GPS technology in them. The phones can receive actual GPS satellite signals, but they can't do it without help from a location server on the network, and the location server does the calculations to figure out the actual location. The phone isn't capable of determining its own location. SignatureRich Brome Phone Scoop http://www.phonescoop.com/ Okay. Thanks for the clarity. But if it is really a network issue than aren't TDMA phones already compliant? So far the only excuse I've come across is that the cell sites may be too far apart. But TDMA is a well established system will a longer reach so why? rXich@phonescoop.com (Rich Brome) wrote in article <vl9e0e1hff2466@corp.supernews.com>: > > While it may not be in the TDMA handset there is a chip in all new GSM > > handsets. CDMA handsets also have GPS chips in them as well. [quoted text clipped - 16 lines] > > [posted via phonescoop.com - free web access to the alt.cellular groups] Update. A little research shows that GPS is a layover technology now being used by all providers. AMPS, TDMA, CDMA, and GSM is all supported by GPS technology. The real question being do you want to spend extra money to have the handset physically enhanced so locations are more reliable. Verizon decided to enhance their handsets as well as use the overlay. www.geometrix.com wmbray@hotmail.com (William Bray) wrote in article <vla6bai84fi1fa@corp.supernews.com>: > Okay. Thanks for the clarity. But if it is really a network issue than > aren't TDMA phones already compliant? So far the only excuse I've come [quoted text clipped - 25 lines] > > [posted via phonescoop.com - free web access to the alt.cellular groups] |
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