diff --git a/config/hiddenapi-greylist-max-p.txt b/config/hiddenapi-greylist-max-p.txt
index 141e8e669dac4..25d45b0e65707 100644
--- a/config/hiddenapi-greylist-max-p.txt
+++ b/config/hiddenapi-greylist-max-p.txt
@@ -70,6 +70,8 @@ Lcom/android/internal/R$styleable;->MenuView:[I
 Lcom/android/internal/R$styleable;->Searchable:[I
 Lcom/android/internal/R$styleable;->SearchableActionKey:[I
 Lcom/android/internal/telephony/IPhoneSubInfo$Stub;-><init>()V
+Lcom/android/internal/telephony/ITelephony;->getDataActivity()I
+Lcom/android/internal/telephony/ITelephony;->getDataState()I
 Lcom/android/internal/telephony/ITelephonyRegistry;->notifyCallForwardingChanged(Z)V
 Lcom/android/internal/telephony/ITelephonyRegistry;->notifyCellLocation(Landroid/os/Bundle;)V
 Lcom/android/internal/telephony/ITelephonyRegistry;->notifyDataActivity(I)V
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index b38d35a0a7922..24110d6f5e6de 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -4901,7 +4901,8 @@ public class TelephonyManager {
             ITelephony telephony = getITelephony();
             if (telephony == null)
                 return DATA_ACTIVITY_NONE;
-            return telephony.getDataActivity();
+            return telephony.getDataActivityForSubId(
+                    getSubId(SubscriptionManager.getActiveDataSubscriptionId()));
         } catch (RemoteException ex) {
             // the phone process is restarting.
             return DATA_ACTIVITY_NONE;
@@ -4949,7 +4950,8 @@ public class TelephonyManager {
             ITelephony telephony = getITelephony();
             if (telephony == null)
                 return DATA_DISCONNECTED;
-            return telephony.getDataState();
+            return telephony.getDataStateForSubId(
+                    getSubId(SubscriptionManager.getActiveDataSubscriptionId()));
         } catch (RemoteException ex) {
             // the phone process is restarting.
             return DATA_DISCONNECTED;
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 5a27a0fb42e41..a2dcc78585ebd 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -308,18 +308,46 @@ interface ITelephony {
      */
     List<NeighboringCellInfo> getNeighboringCellInfo(String callingPkg);
 
-     @UnsupportedAppUsage
-     int getCallState();
+    @UnsupportedAppUsage
+    int getCallState();
 
     /**
      * Returns the call state for a slot.
      */
-     int getCallStateForSlot(int slotIndex);
+    int getCallStateForSlot(int slotIndex);
 
-     @UnsupportedAppUsage
-     int getDataActivity();
-     @UnsupportedAppUsage
-     int getDataState();
+    /**
+     * Replaced by getDataActivityForSubId.
+     */
+    int getDataActivity();
+
+    /**
+     * Returns a constant indicating the type of activity on a data connection
+     * (cellular).
+     *
+     * @see #DATA_ACTIVITY_NONE
+     * @see #DATA_ACTIVITY_IN
+     * @see #DATA_ACTIVITY_OUT
+     * @see #DATA_ACTIVITY_INOUT
+     * @see #DATA_ACTIVITY_DORMANT
+     */
+    int getDataActivityForSubId(int subId);
+
+    /**
+     * Replaced by getDataStateForSubId.
+     */
+    int getDataState();
+
+    /**
+     * Returns a constant indicating the current data connection state
+     * (cellular).
+     *
+     * @see #DATA_DISCONNECTED
+     * @see #DATA_CONNECTING
+     * @see #DATA_CONNECTED
+     * @see #DATA_SUSPENDED
+     */
+    int getDataStateForSubId(int subId);
 
     /**
      * Returns the current active phone type as integer.