Each phone connects to a mobile phone antenna operated by a mobile phone operator. The GSM network has many of those antennas and they are located pretty close to you with your mobile. So it is possible to find the location according that internal information in case you know what the information mean.

With CellTrack you can assign a name to the information of that mobile operator. Next time you enter that area it is easier to recognise that information.

In CellTrack Pro there is the possibility to assign a profile (ringing tones and some settings of your mobile phone are stored in a profile) to a location. It means that as soon you enter a certain area your mobile phone might switch to the profile silent (cinema) or outdoor (busy street).
More additional features in Pro version are:
* Alarm for no coverage
* Adding of locations
* Notification of new location

Remarks to comments:

* nokia has a strict separation of phone and communicator part in the point of view of programming the communicator - so there is no access to the phone display !

-> correction: i managed to get the location info broadcasted by the gsm operator ! Version 2.40 will include that feature !
From version 2.40.32 you need to have installed Nokia's cbs.app ! find it here

* celltrack separates the location information in operator-mnc-location_are_code-cellid