7.1新增加功能開關（CarrierConfigManager）

1.預設不插卡緊急號碼走ims，設定開關：

        // SetKEY_CARRIER_USE_IMS_FIRST_FOR_EMERGENCY_BOOL from true to false

       sDefaults.putBoolean(KEY_CARRIER_USE_IMS_FIRST_FOR_EMERGENCY_BOOL,false);

2.關閉data，介面不顯示volte視訊入口開關：

        // SetKEY_IGNORE_DATA_ENABLED_CHANGED_FOR_VIDEO_CALLS from false to true

       sDefaults.putBoolean(KEY_IGNORE_DATA_ENABLED_CHANGED_FOR_VIDEO_CALLS,true);

3.volte分析一些關鍵字：

08-2421:59:50.123  1932  1932 D ImsManager: setAdvanced4GMode:turnOffIms

08-2421:59:50.808  1932  1932 D ImsManager: setAdvanced4GMode:turnOnIms

08-2421:59:25.268  1932  2095 D ImsPhoneCallTracker:[ImsPhoneCallTracker] onFeatureCapabilityChanged: isVolteEnabled=false,isVideoCallEnabled=false, isVowifiEnabled=false, isUtEnabled=false

08-2421:59:27.418  1932  2095 D ImsPhoneCallTracker:[ImsPhoneCallTracker] onFeatureCapabilityChanged: isVolteEnabled=false,isVideoCallEnabled=false, isVowifiEnabled=false, isUtEnabled=true

08-2421:59:50.172  1932  2095 D ImsPhoneCallTracker:[ImsPhoneCallTracker] onFeatureCapabilityChanged: isVolteEnabled=false,isVideoCallEnabled=false, isVowifiEnabled=false, isUtEnabled=true