diff --git a/api/current.txt b/api/current.txt
index c8e23e409e363..a8f5244f0b03b 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -33065,7 +33065,6 @@ package android.provider {
 
   public static final class VoicemailContract.Status implements android.provider.BaseColumns {
     method public static android.net.Uri buildSourceUri(java.lang.String);
-    method public static void setQuota(android.content.Context, android.telecom.PhoneAccountHandle, int, int);
     field public static final java.lang.String CONFIGURATION_STATE = "configuration_state";
     field public static final int CONFIGURATION_STATE_CAN_BE_CONFIGURED = 2; // 0x2
     field public static final int CONFIGURATION_STATE_NOT_CONFIGURED = 1; // 0x1
diff --git a/api/system-current.txt b/api/system-current.txt
index 5065962b40bae..38280de8827f7 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -35771,7 +35771,6 @@ package android.provider {
 
   public static final class VoicemailContract.Status implements android.provider.BaseColumns {
     method public static android.net.Uri buildSourceUri(java.lang.String);
-    method public static void setQuota(android.content.Context, android.telecom.PhoneAccountHandle, int, int);
     field public static final java.lang.String CONFIGURATION_STATE = "configuration_state";
     field public static final int CONFIGURATION_STATE_CAN_BE_CONFIGURED = 2; // 0x2
     field public static final int CONFIGURATION_STATE_NOT_CONFIGURED = 1; // 0x1
diff --git a/api/test-current.txt b/api/test-current.txt
index 2b11adc6b504f..d52a0cf2956b4 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -33142,7 +33142,6 @@ package android.provider {
 
   public static final class VoicemailContract.Status implements android.provider.BaseColumns {
     method public static android.net.Uri buildSourceUri(java.lang.String);
-    method public static void setQuota(android.content.Context, android.telecom.PhoneAccountHandle, int, int);
     field public static final java.lang.String CONFIGURATION_STATE = "configuration_state";
     field public static final int CONFIGURATION_STATE_CAN_BE_CONFIGURED = 2; // 0x2
     field public static final int CONFIGURATION_STATE_NOT_CONFIGURED = 1; // 0x1
diff --git a/core/java/android/provider/VoicemailContract.java b/core/java/android/provider/VoicemailContract.java
index 79e0a3018bc1d..55aac9f7b06e7 100644
--- a/core/java/android/provider/VoicemailContract.java
+++ b/core/java/android/provider/VoicemailContract.java
@@ -555,14 +555,17 @@ public class VoicemailContract {
 
         /**
          * Amount of resource that is used by existing voicemail in the visual voicemail inbox,
-         * or {@link #QUOTA_UNAVAILABLE}. Unit is not specified.
+         * or {@link #QUOTA_UNAVAILABLE} if the quota has never been updated before. This value is
+         * used to inform the client the situation on the remote server. Unit is not specified.
          * <P>Type: INTEGER</P>
          */
         public static final String QUOTA_OCCUPIED = "quota_occupied";
 
         /**
          * Total resource in the visual voicemail inbox that can be used, or
-         * {@link #QUOTA_UNAVAILABLE}. Unit is not specified.
+         * {@link #QUOTA_UNAVAILABLE} if server either has unlimited quota or does not provide quota
+         * information. This value is used to inform the client the situation on the remote server.
+         * Unit is not specified.
          * <P>Type: INTEGER</P>
          */
         public static final String QUOTA_TOTAL = "quota_total";
@@ -620,6 +623,8 @@ public class VoicemailContract {
          * @param accountHandle The handle for the account the source is associated with.
          * @param occupied See {@link Status#QUOTA_OCCUPIED}
          * @param total See {@link Status#QUOTA_TOTAL}
+         *
+         * @hide
          */
         public static void setQuota(Context context, PhoneAccountHandle accountHandle, int occupied,
                 int total) {