[Asterisk-Users] GPS-enabled cell phone/PDA

[Juergen K. Zick]

Hi There,

this is very much dependent from your provider, your PDA/cell phone and the 
network. For GSM networks in Europe e.g. the providers have different types 
of information available through the CB channels of their base stations.
This data can always be read and stored in your SMARTPHONE/PDA and when 
that has GPS data, then this data as well ...
One nice examples are celltrack or gsmmon9210 for SYMBIAN based phones. 
What you do on the phone with the data is your business ;-) ..
There are web-based databases available which show the exact location of 
the next station you're connected to. If you have GPS locally, than you 
have not to rely on thie cell data.
Cell data inside cities can give your location as exact as to 100m, in 
rural areas it can be up to 5 km I suppose.

Of course you can send the received data via SMS to other systems or with 
GPRS or WLAN access more or less online to Internet based services.

With TDMA or IDEN phone systems which are used outside of Europe I have no 
experiences at all, sorry ...

-- Jürgen


> > I would like to capture the lat/lon coordinates from a GPS-enabled cell
> > phone or PDA.  Is this possible?  Must I subscribe to this information
> > from the cellphone network provider, or can I capture it without charge?
> >
> > What devices will broadcast the coordinates?  Is there a device that
> > will broadcast its position inband that can be captured by Asterisk?
> > Can an SMS message include coordinates?
> >
> > The subject will willingly carry the device and will be aware that his
> > location is being monitored, so privacy rights are not an issue.  The
> > subject will make periodic calls to the Asterisk server in order to
> > record his movements.
> >
> > Does anyone have experience in this area?
>
>Its my understanding the cell phone coordinates are sent to the cell phone
>provider and their equipment reads (and holds) that data. Its not part
>of any data available to you in any form unless you talk to the cell
>provider and convience them you have a valid need. Highly unlikely in
>the US anyway. Even if you could convience them to provide it, they
>would likely demaand some sort of out-of-band data transmission facility.
>
>
>
>
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