diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 4b815e316a50a..ae9d7f909dad5 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -13001,6 +13001,7 @@ package android.telephony {
     field public static final int ALLOWED_NETWORK_TYPES_REASON_USER = 0; // 0x0
     field public static final int CALL_WAITING_STATUS_DISABLED = 2; // 0x2
     field public static final int CALL_WAITING_STATUS_ENABLED = 1; // 0x1
+    field public static final int CALL_WAITING_STATUS_FDN_CHECK_FAILURE = 5; // 0x5
     field public static final int CALL_WAITING_STATUS_NOT_SUPPORTED = 4; // 0x4
     field public static final int CALL_WAITING_STATUS_UNKNOWN_ERROR = 3; // 0x3
     field public static final String CAPABILITY_NR_DUAL_CONNECTIVITY_CONFIGURATION_AVAILABLE = "CAPABILITY_NR_DUAL_CONNECTIVITY_CONFIGURATION_AVAILABLE";
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 0c56de82eafc0..536517c12313e 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -15137,6 +15137,15 @@ public class TelephonyManager {
     @SystemApi
     public static final int CALL_WAITING_STATUS_NOT_SUPPORTED = 4;
 
+    /**
+     * Indicates the call waiting status could not be set or queried because the Fixed Dialing
+     * Numbers (FDN) feature is enabled.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final int CALL_WAITING_STATUS_FDN_CHECK_FAILURE = 5;
+
     /**
      * @hide
      */
@@ -15145,6 +15154,7 @@ public class TelephonyManager {
             CALL_WAITING_STATUS_DISABLED,
             CALL_WAITING_STATUS_UNKNOWN_ERROR,
             CALL_WAITING_STATUS_NOT_SUPPORTED,
+            CALL_WAITING_STATUS_FDN_CHECK_FAILURE,
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface CallWaitingStatus {
@@ -15165,6 +15175,7 @@ public class TelephonyManager {
      *                          <li>{@link #CALL_WAITING_STATUS_DISABLED}}</li>
      *                          <li>{@link #CALL_WAITING_STATUS_UNKNOWN_ERROR}}</li>
      *                          <li>{@link #CALL_WAITING_STATUS_NOT_SUPPORTED}}</li>
+     *                          <li>{@link #CALL_WAITING_STATUS_FDN_CHECK_FAILURE}}</li>
      *                       </ul>
      * @hide
      */
@@ -15214,7 +15225,8 @@ public class TelephonyManager {
      *                       {@link #CALL_WAITING_STATUS_ENABLED} or
      *                       {@link #CALL_WAITING_STATUS_DISABLED} if the operation succeeded and
      *                       {@link #CALL_WAITING_STATUS_NOT_SUPPORTED} or
-     *                       {@link #CALL_WAITING_STATUS_UNKNOWN_ERROR} if it failed.
+     *                       {@link #CALL_WAITING_STATUS_UNKNOWN_ERROR} or
+     *                       {@link #CALL_WAITING_STATUS_FDN_CHECK_FAILURE} if it failed.
      * @hide
      */
     @SystemApi