What network an iPhone is connected to (LTE vs GSM). How to confirm this ?

Question

With the release of iOS 6 and iphone-5 I'm trying to figure out how my app can know if the phone is in LTE mode vs GSM mode.

I haven't seen any updates to the Reachability API which can give whether it is connected to Wifi vs WWAN but I need to know what kind of WWAN connection it is.

Any ideas?

Answer 1

For iO6 and below models, you cannot do this.

As of iOS 7, you can find this out using the

currentRadioAccessTechnology property ofCTTelephonyNetworkInfo in the CoreTelephony framework.

#import <CoreTelephony/CTTelephonyNetworkInfo.h>

CTTelephonyNetworkInfo *networkInfo = [CTTelephonyNetworkInfo new];

if ([networkInfo.currentRadioAccessTechnology
isEqualToString:CTRadioAccessTechnologyLTE]) {
// ... }