My phone (Nokia 6220 Classic) allegedly supports 'Network Based' positioning. I can select this option in addition to 'Assisted GPS' and 'Integrated GPS', and 'Bluetooth GPS' in my settings.
My understanding of 'network based' positioning is that it uses cell tower signal strength and geographic location to roughtly triangulate position quickly. When I run Google Maps on my phone, this is exactly what happens - within a few seconds I get an approximate position shown, regardless of how long it takes for the GPS to lock on (if at all).
When I run Nokia Maps, I never get an approximate location displayed. Nokia Maps user guides and help files make vague reference to 'network positioning', alluding to functionality as described above (if supported by the network).
My question is this: why does network positioning appear to work in Google Maps, but not Nokia Maps?