diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 1d081119ffd3a..0b58e7614ad7a 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -778,6 +778,14 @@ public class CarrierConfigManager {
      */
     public static final String KEY_IMS_CONFERENCE_SIZE_LIMIT_INT = "ims_conference_size_limit_int";
 
+    /**
+     * Determines whether manage IMS conference calls is supported by a carrier.  When {@code true},
+     * manage IMS conference call is supported, {@code false otherwise}.
+     * @hide
+     */
+    public static final String KEY_SUPPORT_MANAGE_IMS_CONFERENCE_CALL_BOOL =
+            "support_manage_ims_conference_call_bool";
+
     /**
      * Determines whether High Definition audio property is displayed in the dialer UI.
      * If {@code false}, remove the HD audio property from the connection so that HD audio related
@@ -1782,6 +1790,7 @@ public class CarrierConfigManager {
         sDefaults.putInt(KEY_CDMA_3WAYCALL_FLASH_DELAY_INT , 0);
         sDefaults.putBoolean(KEY_SUPPORT_CONFERENCE_CALL_BOOL, true);
         sDefaults.putBoolean(KEY_SUPPORT_IMS_CONFERENCE_CALL_BOOL, true);
+        sDefaults.putBoolean(KEY_SUPPORT_MANAGE_IMS_CONFERENCE_CALL_BOOL, true);
         sDefaults.putBoolean(KEY_SUPPORT_VIDEO_CONFERENCE_CALL_BOOL, false);
         sDefaults.putBoolean(KEY_IS_IMS_CONFERENCE_SIZE_ENFORCED_BOOL, false);
         sDefaults.putInt(KEY_IMS_CONFERENCE_SIZE_LIMIT_INT, 5);