In the creker's post Get CellID, MCC, MNC, LAC, and Network in iOS 5.1, he mentioned that there are some private api in CoreTelephony Framework, such as _CTServerConnectionCreate.
I've tried the "class-dump" tool but it didn't work. eg: Using 'class-dump -H CoreTelephony -o Headers ' i didn't see any function name has 'CTServer' prefix in dump file. Can anyone help me?