diff --git a/api/current.txt b/api/current.txt
index a2b8eec..70d7fd2 100755
--- a/api/current.txt
+++ b/api/current.txt
@@ -42316,6 +42316,7 @@
     method public java.lang.String getVoiceMailNumber(android.telecom.PhoneAccountHandle);
     method public boolean handleMmi(java.lang.String);
     method public boolean handleMmi(java.lang.String, android.telecom.PhoneAccountHandle);
+    method public boolean isDefaultCallScreeningApp(android.content.ComponentName);
     method public boolean isInCall();
     method public boolean isInManagedCall();
     method public boolean isIncomingCallPermitted(android.telecom.PhoneAccountHandle);
@@ -42324,12 +42325,14 @@
     method public boolean isVoiceMailNumber(android.telecom.PhoneAccountHandle, java.lang.String);
     method public void placeCall(android.net.Uri, android.os.Bundle);
     method public void registerPhoneAccount(android.telecom.PhoneAccount);
+    method public void requestChangeDefaultCallScreeningApp(android.content.ComponentName);
     method public void showInCallScreen(boolean);
     method public void silenceRinger();
     method public void unregisterPhoneAccount(android.telecom.PhoneAccountHandle);
     field public static final java.lang.String ACTION_CHANGE_DEFAULT_DIALER = "android.telecom.action.CHANGE_DEFAULT_DIALER";
     field public static final java.lang.String ACTION_CHANGE_PHONE_ACCOUNTS = "android.telecom.action.CHANGE_PHONE_ACCOUNTS";
     field public static final java.lang.String ACTION_CONFIGURE_PHONE_ACCOUNT = "android.telecom.action.CONFIGURE_PHONE_ACCOUNT";
+    field public static final java.lang.String ACTION_DEFAULT_CALL_SCREENING_APP_CHANGED = "android.telecom.action.DEFAULT_CALL_SCREENING_APP_CHANGED";
     field public static final java.lang.String ACTION_DEFAULT_DIALER_CHANGED = "android.telecom.action.DEFAULT_DIALER_CHANGED";
     field public static final deprecated java.lang.String ACTION_INCOMING_CALL = "android.telecom.action.INCOMING_CALL";
     field public static final java.lang.String ACTION_PHONE_ACCOUNT_REGISTERED = "android.telecom.action.PHONE_ACCOUNT_REGISTERED";
@@ -42346,9 +42349,11 @@
     field public static final java.lang.String EXTRA_CALL_NETWORK_TYPE = "android.telecom.extra.CALL_NETWORK_TYPE";
     field public static final java.lang.String EXTRA_CALL_SUBJECT = "android.telecom.extra.CALL_SUBJECT";
     field public static final java.lang.String EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME = "android.telecom.extra.CHANGE_DEFAULT_DIALER_PACKAGE_NAME";
+    field public static final java.lang.String EXTRA_DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME = "android.telecom.extra.DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME";
     field public static final java.lang.String EXTRA_INCOMING_CALL_ADDRESS = "android.telecom.extra.INCOMING_CALL_ADDRESS";
     field public static final java.lang.String EXTRA_INCOMING_CALL_EXTRAS = "android.telecom.extra.INCOMING_CALL_EXTRAS";
     field public static final java.lang.String EXTRA_INCOMING_VIDEO_STATE = "android.telecom.extra.INCOMING_VIDEO_STATE";
+    field public static final java.lang.String EXTRA_IS_DEFAULT_CALL_SCREENING_APP = "android.telecom.extra.IS_DEFAULT_CALL_SCREENING_APP";
     field public static final java.lang.String EXTRA_NOTIFICATION_COUNT = "android.telecom.extra.NOTIFICATION_COUNT";
     field public static final java.lang.String EXTRA_NOTIFICATION_PHONE_NUMBER = "android.telecom.extra.NOTIFICATION_PHONE_NUMBER";
     field public static final java.lang.String EXTRA_OUTGOING_CALL_EXTRAS = "android.telecom.extra.OUTGOING_CALL_EXTRAS";
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index 3127b35..fa16bfe 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -15,6 +15,7 @@
 package android.telecom;
 
 import android.Manifest;
+import android.annotation.NonNull;
 import android.annotation.RequiresPermission;
 import android.annotation.SuppressAutoDoc;
 import android.annotation.SuppressLint;
@@ -175,6 +176,33 @@
             "android.telecom.extra.CHANGE_DEFAULT_DIALER_PACKAGE_NAME";
 
     /**
+     * Broadcast intent action indicating that the current default call screening app has changed.
+     *
+     * The string extra {@link #EXTRA_DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME} will contain the
+     * name of the Component of the previous or the new call screening app.
+     *
+     * The boolean extra {@link #EXTRA_IS_DEFAULT_CALL_SCREENING_APP} will indicate the component
+     * name in the String extra {@link #EXTRA_DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME} is default
+     * call screening app or not.
+     */
+    public static final String ACTION_DEFAULT_CALL_SCREENING_APP_CHANGED =
+        "android.telecom.action.DEFAULT_CALL_SCREENING_APP_CHANGED";
+
+    /**
+     * Extra value used with {@link #ACTION_DEFAULT_CALL_SCREENING_APP_CHANGED} broadcast to
+     * indicate the ComponentName of the call screening app which has changed.
+     */
+    public static final String EXTRA_DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME =
+            "android.telecom.extra.DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME";
+
+    /**
+     * Extra value used with {@link #ACTION_DEFAULT_CALL_SCREENING_APP_CHANGED} broadcast to
+     * indicate whether an app is the default call screening app.
+     */
+    public static final String EXTRA_IS_DEFAULT_CALL_SCREENING_APP =
+            "android.telecom.extra.IS_DEFAULT_CALL_SCREENING_APP";
+
+    /**
      * Optional extra for {@link android.content.Intent#ACTION_CALL} containing a boolean that
      * determines whether the speakerphone should be automatically turned on for an outgoing call.
      */
@@ -1169,6 +1197,79 @@
     }
 
     /**
+     * Used to trigger display of the ChangeDefaultCallScreeningApp activity to prompt the user to
+     * change the call screening app.
+     *
+     * A {@link SecurityException} will be thrown if calling package name doesn't match the package
+     * of the passed {@link ComponentName}
+     *
+     * @param componentName to verify that the calling package name matches the package of the
+     * passed ComponentName.
+     */
+    public void requestChangeDefaultCallScreeningApp(@NonNull ComponentName componentName) {
+        try {
+            if (isServiceConnected()) {
+                getTelecomService().requestChangeDefaultCallScreeningApp(componentName, mContext
+                    .getOpPackageName());
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG,
+                "RemoteException calling ITelecomService#requestChangeDefaultCallScreeningApp.",
+                e);
+        }
+    }
+
+    /**
+     * Used to verify that the passed ComponentName is default call screening app.
+     *
+     * @param componentName to verify that the package of the passed ComponentName matched the default
+     * call screening packageName.
+     *
+     * @return {@code true} if the passed componentName matches the default call screening's, {@code
+     * false} if the passed componentName is null, or it doesn't match default call screening's.
+     */
+    public boolean isDefaultCallScreeningApp(ComponentName componentName) {
+        try {
+            if (isServiceConnected()) {
+                return getTelecomService().isDefaultCallScreeningApp(componentName);
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG,
+                "RemoteException calling ITelecomService#isDefaultCallScreeningApp.",
+                e);
+        }
+        return false;
+    }
+
+    /**
+     * Used to set the default call screening package.
+     *
+     * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE} Requires
+     * permission: {@link android.Manifest.permission#WRITE_SECURE_SETTINGS}
+     *
+     * A {@link IllegalArgumentException} will be thrown if the specified package and component name
+     * of {@link ComponentName} does't exist, or the specified component of {@link ComponentName}
+     * does't have {@link android.Manifest.permission#BIND_SCREENING_SERVICE}.
+     *
+     * @param componentName to set the default call screening to.
+     * @hide
+     */
+    @RequiresPermission(anyOf = {
+        android.Manifest.permission.MODIFY_PHONE_STATE,
+        android.Manifest.permission.WRITE_SECURE_SETTINGS
+    })
+    public void setDefaultCallScreeningApp(ComponentName componentName) {
+        try {
+            if (isServiceConnected()) {
+                getTelecomService().setDefaultCallScreeningApp(componentName);
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG,
+                "RemoteException calling ITelecomService#setDefaultCallScreeningApp.", e);
+        }
+    }
+
+    /**
      * Return whether a given phone number is the configured voicemail number for a
      * particular phone account.
      *
diff --git a/telecomm/java/com/android/internal/telecom/ITelecomService.aidl b/telecomm/java/com/android/internal/telecom/ITelecomService.aidl
index df7d683..d97f0c5f 100644
--- a/telecomm/java/com/android/internal/telecom/ITelecomService.aidl
+++ b/telecomm/java/com/android/internal/telecom/ITelecomService.aidl
@@ -256,6 +256,21 @@
     boolean setDefaultDialer(in String packageName);
 
     /**
+     * @see TelecomServiceImpl#requestChangeDefaultCallScreeningApp
+     */
+    void requestChangeDefaultCallScreeningApp(in ComponentName componentNamem, String callingPackage);
+
+    /**
+     * @see TelecomServiceImpl#isDefaultCallScreeningApp
+     */
+    boolean isDefaultCallScreeningApp(in ComponentName componentName);
+
+    /**
+     * @see TelecomServiceImpl#setDefaultCallScreeningApp
+     */
+    void setDefaultCallScreeningApp(in ComponentName componentName);
+
+    /**
     * @see TelecomServiceImpl#createManageBlockedNumbersIntent
     **/
     Intent createManageBlockedNumbersIntent();