You can use cell towers

On Mon, Feb 14, 2011 at 7:37 AM, JAlexoid (Aleksandr Panzin) <
[email protected]> wrote:

> In theory it is possible using accelerometer. But that will trash the
> battery and will not be reliable. In addition to being heavy on
> computation.
>
> On 4 фев, 15:55, dica <[email protected]> wrote:
> > Hi
> >
> > Is it possible to track movement without GPS?  The GPS signal is too
> > weak on my phone to work indoors.  I want to be able to track where
> > I've been within a building.  Possible?
> >
> > Tks
>
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