diff --git a/api/current.txt b/api/current.txt
index 343b750ca97ac..443116f6ffd20 100755
--- a/api/current.txt
+++ b/api/current.txt
@@ -42000,6 +42000,7 @@ package android.telephony {
     field public static final java.lang.String KEY_SIM_NETWORK_UNLOCK_ALLOW_DISMISS_BOOL = "sim_network_unlock_allow_dismiss_bool";
     field public static final java.lang.String KEY_SMS_REQUIRES_DESTINATION_NUMBER_CONVERSION_BOOL = "sms_requires_destination_number_conversion_bool";
     field public static final java.lang.String KEY_SUPPORT_3GPP_CALL_FORWARDING_WHILE_ROAMING_BOOL = "support_3gpp_call_forwarding_while_roaming_bool";
+    field public static final java.lang.String KEY_SUPPORT_CLIR_NETWORK_DEFAULT_BOOL = "support_clir_network_default_bool";
     field public static final java.lang.String KEY_SUPPORT_CONFERENCE_CALL_BOOL = "support_conference_call_bool";
     field public static final java.lang.String KEY_SUPPORT_EMERGENCY_SMS_OVER_IMS_BOOL = "support_emergency_sms_over_ims_bool";
     field public static final java.lang.String KEY_SUPPORT_PAUSE_IMS_VIDEO_CALLS_BOOL = "support_pause_ims_video_calls_bool";
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 42596b3324d6a..56ffe93b24562 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -2223,6 +2223,13 @@ public class CarrierConfigManager {
     public static final String KEY_CALL_WAITING_OVER_UT_WARNING_BOOL =
             "call_waiting_over_ut_warning_bool";
 
+    /**
+     * Flag indicating whether to support "Network default" option in Caller ID settings for Calling
+     * Line Identification Restriction (CLIR).
+     */
+    public static final String KEY_SUPPORT_CLIR_NETWORK_DEFAULT_BOOL =
+            "support_clir_network_default_bool";
+
     /** The default value for every variable. */
     private final static PersistableBundle sDefaults;
 
@@ -2570,6 +2577,7 @@ public class CarrierConfigManager {
         sDefaults.putBoolean(KEY_CALL_BARRING_OVER_UT_WARNING_BOOL, false);
         sDefaults.putBoolean(KEY_CALLER_ID_OVER_UT_WARNING_BOOL, false);
         sDefaults.putBoolean(KEY_CALL_WAITING_OVER_UT_WARNING_BOOL, false);
+        sDefaults.putBoolean(KEY_SUPPORT_CLIR_NETWORK_DEFAULT_BOOL, true);
     }
 
     /**