All the APs returned by QNetworkConfiguration::allConfigurations() are returning 0 (unknown) from purpose()
This makes it impossible to filter the list to only APs of a particular type.

In the phone UI, there are IAPs in the "internet" group, and the "wap services" group, while the MMS IAPs are hidden.
All IAPs were created automatically when starting the phone with a SIM card inserted, except the WLAN IAP which was created from the fast search window (tapping usb/wlan icons on homescreen)

Expect the grouping in the UI to be reflected in the purpose() return code.