Verizon is in testing with it's location service, but unlikely to make it available to developers before the end of the year.
Other solutions around cellid can be exposed by the user if you have a S60 phone. You can write or download a python script to reveal the cellid lat, long info already stored in your handset. There may be some other grassroots solutions for revealing location info already in the handset.
P.S. I dig what you guys at socialight are doing, btw.
...Debi
On 4/12/06, Dan Melinger <[EMAIL PROTECTED]
> wrote:
Out of the larger carriers in the US, it's my understanding that Verizon and Sprint are using A-GPS and the GSM guys, T-Mobile and Cingular are using alternative technology like Uplink Time Difference of Arrival (U-TDOA) technology provided by TruePosition.A-GPS requires a chip in the phone while U-TDOA doesn't.On Apr 12, 2006, at 12:46 PM, Anthony Townsend wrote:It's the FCC not the FAA, and my understanding is that none of the UScarriers are using tower triangluation (EOTD or other variants) because ofthe cost of network upgrades. Instead they are pushing to cost to you, theconsumer, in the form of A-GPS equipped handsets.[EMAIL PROTECTED] ( [EMAIL PROTECTED]) wrote @ 4/10/06 9:35 AM:I think this is a great question. I talked to a gentleman from South Africalast year at Where 2 who claimed to be a GSM expert. He said that GSM canlocate you within something like 3 meters with no GPS support just usingthe towers, and that this was built into the GSM spec. He spoke of a casein South Africa where they located some sort of criminal using the GSMrecords.He said that CDMA on the other hand, cannot locate so precisely.So, to me, A-GPS was designed to make CDMA users locatable to the samedegree as GSM.As an aside, does anyone know which type of cell phones are more lethal?RogerOriginal Message:-----------------From: Ian | Urban Mapping [EMAIL PROTECTED]Date: Mon, 10 Apr 2006 01:42:23 -0400Subject: [Geowanking] E911 // cellular trilateration accuracyAt the risk of asking (another) obvious question, I continue my naïve streakon this listserv…I've heard very different reports of how accurate cellphone tracking is—theFAA mandates something like 50% of calls must be traceable to within a rangeof 30m but I've heard some mobile pros say they've heard of it getting asgood as several feet. Obviously this varies depending on geography (urban,rural, topography), but does anybody have any idea how the US wirelesscarriers stack up? And how does this compare to phones with GPS?120 West 45th Street 20th Floor :: New York NY 10036--------------------------------------------------------------------mail2web - Check your email from the web at_______________________________________________Geowanking mailing list_______________________________________________Geowanking mailing list| dan melinger
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