diff --git a/api/current.txt b/api/current.txt
index 698f36d627bf0..5e50d803ccafd 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -27059,13 +27059,17 @@ package android.service.carrier {
     method public android.os.IBinder onBind(android.content.Intent);
     method public void onDownloadMms(android.net.Uri, int, android.net.Uri, android.service.carrier.CarrierMessagingService.ResultCallback<java.lang.Integer>);
     method public void onFilterSms(android.service.carrier.MessagePdu, java.lang.String, int, int, android.service.carrier.CarrierMessagingService.ResultCallback<java.lang.Boolean>);
-    method public void onSendDataSms(byte[], int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public deprecated void onSendDataSms(byte[], int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public void onSendDataSms(byte[], int, java.lang.String, int, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
     method public void onSendMms(android.net.Uri, int, android.net.Uri, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMmsResult>);
-    method public void onSendMultipartTextSms(java.util.List<java.lang.String>, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMultipartSmsResult>);
-    method public void onSendTextSms(java.lang.String, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public deprecated void onSendMultipartTextSms(java.util.List<java.lang.String>, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMultipartSmsResult>);
+    method public void onSendMultipartTextSms(java.util.List<java.lang.String>, int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMultipartSmsResult>);
+    method public deprecated void onSendTextSms(java.lang.String, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public void onSendTextSms(java.lang.String, int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
     field public static final int DOWNLOAD_STATUS_ERROR = 2; // 0x2
     field public static final int DOWNLOAD_STATUS_OK = 0; // 0x0
     field public static final int DOWNLOAD_STATUS_RETRY_ON_CARRIER_NETWORK = 1; // 0x1
+    field public static final int SEND_FLAG_REQUEST_DELIVERY_STATUS = 1; // 0x1
     field public static final int SEND_STATUS_ERROR = 2; // 0x2
     field public static final int SEND_STATUS_OK = 0; // 0x0
     field public static final int SEND_STATUS_RETRY_ON_CARRIER_NETWORK = 1; // 0x1
diff --git a/api/system-current.txt b/api/system-current.txt
index a23199dce6073..21a1f7fc79fd6 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -28754,13 +28754,17 @@ package android.service.carrier {
     method public android.os.IBinder onBind(android.content.Intent);
     method public void onDownloadMms(android.net.Uri, int, android.net.Uri, android.service.carrier.CarrierMessagingService.ResultCallback<java.lang.Integer>);
     method public void onFilterSms(android.service.carrier.MessagePdu, java.lang.String, int, int, android.service.carrier.CarrierMessagingService.ResultCallback<java.lang.Boolean>);
-    method public void onSendDataSms(byte[], int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public deprecated void onSendDataSms(byte[], int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public void onSendDataSms(byte[], int, java.lang.String, int, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
     method public void onSendMms(android.net.Uri, int, android.net.Uri, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMmsResult>);
-    method public void onSendMultipartTextSms(java.util.List<java.lang.String>, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMultipartSmsResult>);
-    method public void onSendTextSms(java.lang.String, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public deprecated void onSendMultipartTextSms(java.util.List<java.lang.String>, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMultipartSmsResult>);
+    method public void onSendMultipartTextSms(java.util.List<java.lang.String>, int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendMultipartSmsResult>);
+    method public deprecated void onSendTextSms(java.lang.String, int, java.lang.String, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
+    method public void onSendTextSms(java.lang.String, int, java.lang.String, int, android.service.carrier.CarrierMessagingService.ResultCallback<android.service.carrier.CarrierMessagingService.SendSmsResult>);
     field public static final int DOWNLOAD_STATUS_ERROR = 2; // 0x2
     field public static final int DOWNLOAD_STATUS_OK = 0; // 0x0
     field public static final int DOWNLOAD_STATUS_RETRY_ON_CARRIER_NETWORK = 1; // 0x1
+    field public static final int SEND_FLAG_REQUEST_DELIVERY_STATUS = 1; // 0x1
     field public static final int SEND_STATUS_ERROR = 2; // 0x2
     field public static final int SEND_STATUS_OK = 0; // 0x0
     field public static final int SEND_STATUS_RETRY_ON_CARRIER_NETWORK = 1; // 0x1
diff --git a/core/java/android/service/carrier/CarrierMessagingService.java b/core/java/android/service/carrier/CarrierMessagingService.java
index 3d6ebcacec739..ac15ae5667723 100644
--- a/core/java/android/service/carrier/CarrierMessagingService.java
+++ b/core/java/android/service/carrier/CarrierMessagingService.java
@@ -83,6 +83,11 @@ public abstract class CarrierMessagingService extends Service {
      */
     public static final int DOWNLOAD_STATUS_ERROR = 2;
 
+    /**
+     * Flag to request SMS delivery status report.
+     */
+    public static final int SEND_FLAG_REQUEST_DELIVERY_STATUS = 1;
+
     private final ICarrierMessagingWrapper mWrapper = new ICarrierMessagingWrapper();
 
     /**
@@ -106,12 +111,14 @@ public abstract class CarrierMessagingService extends Service {
 
     /**
      * Override this method to intercept text SMSs sent from the device.
+     * @deprecated Override {@link #onSendTextSms} below instead.
      *
      * @param text the text to send
      * @param subId SMS subscription ID of the SIM
      * @param destAddress phone number of the recipient of the message
      * @param callback result callback. Call with a {@link SendSmsResult}.
      */
+    @Deprecated
     public void onSendTextSms(
             @NonNull String text, int subId, @NonNull String destAddress,
             @NonNull ResultCallback<SendSmsResult> callback) {
@@ -122,6 +129,44 @@ public abstract class CarrierMessagingService extends Service {
         }
     }
 
+    /**
+     * Override this method to intercept text SMSs sent from the device.
+     *
+     * @param text the text to send
+     * @param subId SMS subscription ID of the SIM
+     * @param destAddress phone number of the recipient of the message
+     * @param sendSmsFlag Flag for sending SMS. Acceptable values are 0 and
+     *        {@link #SEND_FLAG_REQUEST_DELIVERY_STATUS}.
+     * @param callback result callback. Call with a {@link SendSmsResult}.
+     */
+    public void onSendTextSms(
+            @NonNull String text, int subId, @NonNull String destAddress,
+            int sendSmsFlag, @NonNull ResultCallback<SendSmsResult> callback) {
+        // optional
+        onSendTextSms(text, subId, destAddress, callback);
+    }
+
+    /**
+     * Override this method to intercept binary SMSs sent from the device.
+     * @deprecated Override {@link #onSendDataSms} below instead.
+     *
+     * @param data the binary content
+     * @param subId SMS subscription ID of the SIM
+     * @param destAddress phone number of the recipient of the message
+     * @param destPort the destination port
+     * @param callback result callback. Call with a {@link SendSmsResult}.
+     */
+    @Deprecated
+    public void onSendDataSms(@NonNull byte[] data, int subId,
+            @NonNull String destAddress, int destPort,
+            @NonNull ResultCallback<SendSmsResult> callback) {
+        // optional
+        try {
+            callback.onReceiveResult(new SendSmsResult(SEND_STATUS_RETRY_ON_CARRIER_NETWORK, 0));
+        } catch (RemoteException ex) {
+        }
+    }
+
     /**
      * Override this method to intercept binary SMSs sent from the device.
      *
@@ -129,14 +174,34 @@ public abstract class CarrierMessagingService extends Service {
      * @param subId SMS subscription ID of the SIM
      * @param destAddress phone number of the recipient of the message
      * @param destPort the destination port
+     * @param sendSmsFlag Flag for sending SMS. Acceptable values are 0 and
+     *        {@link #SEND_FLAG_REQUEST_DELIVERY_STATUS}.
      * @param callback result callback. Call with a {@link SendSmsResult}.
      */
     public void onSendDataSms(@NonNull byte[] data, int subId,
-            @NonNull String destAddress, int destPort,
+            @NonNull String destAddress, int destPort, int sendSmsFlag,
             @NonNull ResultCallback<SendSmsResult> callback) {
         // optional
+        onSendDataSms(data, subId, destAddress, destPort, callback);
+    }
+
+    /**
+     * Override this method to intercept long SMSs sent from the device.
+     * @deprecated Override {@link #onSendMultipartTextSms} below instead.
+     *
+     * @param parts a {@link List} of the message parts
+     * @param subId SMS subscription ID of the SIM
+     * @param destAddress phone number of the recipient of the message
+     * @param callback result callback. Call with a {@link SendMultipartSmsResult}.
+     */
+    @Deprecated
+    public void onSendMultipartTextSms(@NonNull List<String> parts,
+            int subId, @NonNull String destAddress,
+            @NonNull ResultCallback<SendMultipartSmsResult> callback) {
+        // optional
         try {
-            callback.onReceiveResult(new SendSmsResult(SEND_STATUS_RETRY_ON_CARRIER_NETWORK, 0));
+            callback.onReceiveResult(
+                    new SendMultipartSmsResult(SEND_STATUS_RETRY_ON_CARRIER_NETWORK, null));
         } catch (RemoteException ex) {
         }
     }
@@ -147,17 +212,15 @@ public abstract class CarrierMessagingService extends Service {
      * @param parts a {@link List} of the message parts
      * @param subId SMS subscription ID of the SIM
      * @param destAddress phone number of the recipient of the message
+     * @param sendSmsFlag Flag for sending SMS. Acceptable values are 0 and
+     *        {@link #SEND_FLAG_REQUEST_DELIVERY_STATUS}.
      * @param callback result callback. Call with a {@link SendMultipartSmsResult}.
      */
     public void onSendMultipartTextSms(@NonNull List<String> parts,
-            int subId, @NonNull String destAddress,
+            int subId, @NonNull String destAddress, int sendSmsFlag,
             @NonNull ResultCallback<SendMultipartSmsResult> callback) {
         // optional
-        try {
-            callback.onReceiveResult(
-                    new SendMultipartSmsResult(SEND_STATUS_RETRY_ON_CARRIER_NETWORK, null));
-        } catch (RemoteException ex) {
-        }
+        onSendMultipartTextSms(parts, subId, destAddress, callback);
     }
 
     /**
@@ -358,8 +421,9 @@ public abstract class CarrierMessagingService extends Service {
 
         @Override
         public void sendTextSms(String text, int subId, String destAddress,
-                                final ICarrierMessagingCallback callback) {
-            onSendTextSms(text, subId, destAddress, new ResultCallback<SendSmsResult>() {
+                int sendSmsFlag, final ICarrierMessagingCallback callback) {
+            onSendTextSms(text, subId, destAddress, sendSmsFlag,
+                    new ResultCallback<SendSmsResult>() {
                     @Override
                     public void onReceiveResult(final SendSmsResult result) throws RemoteException {
                         callback.onSendSmsComplete(result.getSendStatus(), result.getMessageRef());
@@ -369,8 +433,9 @@ public abstract class CarrierMessagingService extends Service {
 
         @Override
         public void sendDataSms(byte[] data, int subId, String destAddress, int destPort,
-                                final ICarrierMessagingCallback callback) {
-            onSendDataSms(data, subId, destAddress, destPort, new ResultCallback<SendSmsResult>() {
+                int sendSmsFlag, final ICarrierMessagingCallback callback) {
+            onSendDataSms(data, subId, destAddress, destPort, sendSmsFlag,
+                    new ResultCallback<SendSmsResult>() {
                     @Override
                     public void onReceiveResult(final SendSmsResult result) throws RemoteException {
                         callback.onSendSmsComplete(result.getSendStatus(), result.getMessageRef());
@@ -380,8 +445,8 @@ public abstract class CarrierMessagingService extends Service {
 
         @Override
         public void sendMultipartTextSms(List<String> parts, int subId, String destAddress,
-                                         final ICarrierMessagingCallback callback) {
-                onSendMultipartTextSms(parts, subId, destAddress,
+                int sendSmsFlag, final ICarrierMessagingCallback callback) {
+            onSendMultipartTextSms(parts, subId, destAddress, sendSmsFlag,
                         new ResultCallback<SendMultipartSmsResult>() {
                                 @Override
                                 public void onReceiveResult(final SendMultipartSmsResult result)
diff --git a/core/java/android/service/carrier/ICarrierMessagingService.aidl b/core/java/android/service/carrier/ICarrierMessagingService.aidl
index 40a9047da4428..2d96c3da64876 100644
--- a/core/java/android/service/carrier/ICarrierMessagingService.aidl
+++ b/core/java/android/service/carrier/ICarrierMessagingService.aidl
@@ -48,9 +48,10 @@ oneway interface ICarrierMessagingService {
      * @param text the text to send
      * @param subId SMS subscription ID of the SIM
      * @param destAddress phone number of the recipient of the message
+     * @param sendSmsFlag flag for sending SMS
      * @param callback the callback to notify upon completion
      */
-    void sendTextSms(String text, int subId, String destAddress,
+    void sendTextSms(String text, int subId, String destAddress, int sendSmsFlag,
             in ICarrierMessagingCallback callback);
 
     /**
@@ -62,10 +63,11 @@ oneway interface ICarrierMessagingService {
      * @param subId SMS subscription ID of the SIM
      * @param destAddress phone number of the recipient of the message
      * @param destPort port number of the recipient of the message
+     * @param sendSmsFlag flag for sending SMS
      * @param callback the callback to notify upon completion
      */
     void sendDataSms(in byte[] data, int subId, String destAddress, int destPort,
-            in ICarrierMessagingCallback callback);
+            int sendSmsFlag, in ICarrierMessagingCallback callback);
 
     /**
      * Request sending a new multi-part text SMS from the device.
@@ -75,10 +77,11 @@ oneway interface ICarrierMessagingService {
      * @param parts the parts of the multi-part text SMS to send
      * @param subId SMS subscription ID of the SIM
      * @param destAddress phone number of the recipient of the message
+     * @param sendSmsFlag flag for sending SMS
      * @param callback the callback to notify upon completion
      */
     void sendMultipartTextSms(in List<String> parts, int subId, String destAddress,
-            in ICarrierMessagingCallback callback);
+            int sendSmsFlag, in ICarrierMessagingCallback callback);
 
     /**
      * Request sending a new MMS PDU from the device.