Each phone's own settings and modem file, against what that phone had before.
{ "AlertTypes": { "Emergency": { "EnabledByDefault": true, "SwitchDescription": "Receiving emergency alerts may affect your battery life.", "SwitchName": "Emergency Alerts", "UserConfigurable": true, "NotificationTitle": "Emergency Alert" } }, "SwitchGroupTitle": "Government Alerts", "MinimumDeviceCategorySupported": 10, "AlertConfigurations": { "Configuration_nl": { "Sound": "cbs_alert_us.caf", "Vibration": "cbs_vibe_us.plist" } }, "MessageValidityPeriod": { "AirplaneMode": false }, "MessageIDParameters3GPP": [ { "FromServiceID": 4371, "AlertType": "Emergency", "AlertConfiguration": "Configuration_nl", "ToServiceID": 4371 } ] }