Get cell towers info in iOS (CoreTelephony?)

I need to get infos about the nearest cell towers (something like the cell id). To identify a place without consuming power, by making a list of possible cells if for example.

I looked at the coretelephony framework but did not see anything about the cell towers. Is there another way to acces this ? Or is th开发者_如何学编程is only possible with private API call ?

In iOS 4.0 there is a startMonitoringSignificantLocationChanges delegate API in CoreLocation that only uses cellular information. You don't get the actual tower information, but you don't need it if you'd only be using it to extrapolate a lat/lon coordinate in any case.

See also the Location Awareness Programming Guide

The significant-change location service offers a low-power location service for devices with cellular radios. This service is available only in iOS 4.0 and later and can also wake up an application that is suspended or not running. (The significant-change location service drastically reduces battery drain by monitoring only cell tower changes, but the service works only on devices with cellular radios.)

You can't get any radio information using the public APIs.

If you believe you have a legitimate need for such information, you should file a bug.

I looked into this a few months back (before 4.0) and it wasn't possible without private APIs. Don't think anything has changed in that regard, sorry.