Telcos could probably triangulate all their cellphones by cell tower ids. Finding out which ones are within a polygon is trivial at that point.
My question to you though is, why do you want to do this? Tom Longson http://truefalsemaybe.com/ On Thu, Oct 23, 2008 at 12:33 PM, Cameron Shorter <[EMAIL PROTECTED] > wrote: > Jeffrey, you have got it. > The question originates from a telco so privacy is not my problem. > I probably should rephrase the question as "Are there any systems for > telcos which allow the telco to select all their mobile phones within a > polygon area?" > > Jeffrey Johnson wrote: > > If I understand correctly, Cameron is asking how to ask the telco > > which phones are in a particular polygon at a particular time. Am I > > right? If this list could be determined by alternate methods > > (registered zip codes, checkins etc), there are any number of 'normal' > > methods to send these phones an sms. The difficult bit is to find out > > ALL the phones in a particular polygon at a particular time (not just > > the ones that have registered their location with a particular app), > > and seems to me you are going to have ask your friendly telco for that > > kind of thing, and I seriously doubt they are gnna help. > > > > ? > > > > Jeff > > > > On Thu, Oct 23, 2008 at 9:22 AM, Marc Pfister <[EMAIL PROTECTED]> > wrote: > > > >> On the more of the phone side of things, you could do it with the > >> Asterisk open-source PBX. It does some basic SMS stuff and there are > >> add-ins that extend the functionality further. > >> > >> Marc > >> > >> > >>> -----Original Message----- > >>> From: [EMAIL PROTECTED] [mailto:geowanking- > >>> [EMAIL PROTECTED] On Behalf Of Cameron Shorter > >>> Sent: Wednesday, October 22, 2008 8:08 PM > >>> To: [email protected] > >>> Subject: [Geowanking] SMSing all phones in a polygon area? > >>> > >>> Hi, > >>> Does anyone know of software or systems which can send SMS messages to > >>> all phones in an operator specified polygon area? > >>> > >>> -- > >>> Cameron Shorter > >>> Geospatial Systems Architect > >>> Tel: +61 (0)2 8570 5050 > >>> Mob: +61 (0)419 142 254 > >>> > >>> Think Globally, Fix Locally > >>> Geospatial Solutions enhanced with Open Standards and Open Source > >>> http://www.lisasoft.com > >>> > >>> _______________________________________________ > >>> Geowanking mailing list > >>> [email protected] > >>> http://lists.burri.to/mailman/listinfo/geowanking > >>> > >> _______________________________________________ > >> Geowanking mailing list > >> [email protected] > >> http://lists.burri.to/mailman/listinfo/geowanking > >> > >> > > _______________________________________________ > > Geowanking mailing list > > [email protected] > > http://lists.burri.to/mailman/listinfo/geowanking > > > > > -- > Cameron Shorter > Geospatial Systems Architect > Tel: +61 (0)2 8570 5050 > Mob: +61 (0)419 142 254 > > Think Globally, Fix Locally > Geospatial Solutions enhanced with Open Standards and Open Source > http://www.lisasoft.com > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking >
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