Default Carrier Config App

This app works as part of com.android.phone.CarrierConfigLoader to configure telephony features based on the subscriber's network. It replaced many XML resource overlays in frameworks/base and frameworks/opt/telephony. The current framework allows per-network configuration that uses CarrierIdentifier objects, rather than just mcc/mnc. per-network configuration files live in assets folder. Two ways to configure per-network configuration. Preferred way is carrier_config_carrierid_.xml AOSP carrier ID assignments can be found at https://android.googlesource.com/platform/packages/providers/TelephonyProvider/+/master/assets/latest_carrier_id/carrier_list.textpb use carrier_config_mccmnc.xml only if there is no matching carrier id.

This app uses a CarrierIdentifier to read the appropriate config snippets from the assets folder.

If you make changes to the XML files, run the unit tests to ensure they can still be parsed: runtest carrierconfig-unit