diff --git a/satellite_client/src/android/telephony/satellite/wrapper/CarrierRoamingNtnModeListenerWrapper.java b/satellite_client/src/android/telephony/satellite/wrapper/CarrierRoamingNtnModeListenerWrapper.java
new file mode 100644
index 0000000..4a2436e
--- /dev/null
+++ b/satellite_client/src/android/telephony/satellite/wrapper/CarrierRoamingNtnModeListenerWrapper.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony.satellite.wrapper;
+
+/** Interface for carrier roaming non-terrestrial network listener. */
+public interface CarrierRoamingNtnModeListenerWrapper {
+    /**
+     * Callback invoked when carrier roaming non-terrestrial network mode changes.
+     *
+     * @param active {@code true} If the device is connected to carrier roaming
+     *                           non-terrestrial network or was connected within the
+     *                           {CarrierConfigManager
+     *                           #KEY_SATELLITE_CONNECTION_HYSTERESIS_SEC_INT} duration,
+     *                           {code false} otherwise.
+     */
+    void onCarrierRoamingNtnModeChanged(boolean active);
+}
diff --git a/satellite_client/src/android/telephony/satellite/wrapper/SatelliteCommunicationAllowedStateCallbackWrapper.java b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteCommunicationAllowedStateCallbackWrapper.java
new file mode 100644
index 0000000..85fb42f
--- /dev/null
+++ b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteCommunicationAllowedStateCallbackWrapper.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony.satellite.wrapper;
+
+/** A callback class for monitoring satellite communication allowed state change events. */
+public interface SatelliteCommunicationAllowedStateCallbackWrapper {
+  /**
+   * Telephony does not guarantee that whenever there is a change in communication allowed state,
+   * this API will be called. Telephony does its best to detect the changes and notify its
+   * listeners accordingly.
+   *
+   * @param isAllowed {@code true} means satellite allow state is changed,
+   *                  {@code false} satellite allow state is not changed
+   */
+  void onSatelliteCommunicationAllowedStateChanged(boolean isAllowed);
+}
diff --git a/satellite_client/src/android/telephony/satellite/wrapper/SatelliteManagerWrapper.java b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteManagerWrapper.java
index d230e8f..aab002a 100644
--- a/satellite_client/src/android/telephony/satellite/wrapper/SatelliteManagerWrapper.java
+++ b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteManagerWrapper.java
@@ -32,6 +32,7 @@
 import android.telephony.ServiceState;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyManager;
 import android.telephony.satellite.AntennaPosition;
 import android.telephony.satellite.EnableRequestAttributes;
@@ -40,11 +41,14 @@
 import android.telephony.satellite.PointingInfo;
 import android.telephony.satellite.SatelliteCapabilities;
 import android.telephony.satellite.SatelliteCapabilitiesCallback;
+import android.telephony.satellite.SatelliteCommunicationAllowedStateCallback;
 import android.telephony.satellite.SatelliteDatagram;
 import android.telephony.satellite.SatelliteDatagramCallback;
 import android.telephony.satellite.SatelliteManager;
 import android.telephony.satellite.SatelliteModemStateCallback;
 import android.telephony.satellite.SatelliteProvisionStateCallback;
+import android.telephony.satellite.SatelliteSessionStats;
+import android.telephony.satellite.SatelliteSupportedStateCallback;
 import android.telephony.satellite.SatelliteTransmissionUpdateCallback;
 
 import com.android.internal.telephony.flags.Flags;
@@ -94,6 +98,18 @@
           SatelliteCapabilitiesCallbackWrapper, SatelliteCapabilitiesCallback>
           sSatelliteCapabilitiesCallbackWrapperMap = new ConcurrentHashMap<>();
 
+  private static final ConcurrentHashMap<
+          SatelliteSupportedStateCallbackWrapper, SatelliteSupportedStateCallback>
+          sSatelliteSupportedStateCallbackWrapperMap = new ConcurrentHashMap<>();
+
+  private static final ConcurrentHashMap<CarrierRoamingNtnModeListenerWrapper,
+          CarrierRoamingNtnModeListener>
+          sCarrierRoamingNtnModeListenerWrapperMap = new ConcurrentHashMap<>();
+
+  private static final ConcurrentHashMap<SatelliteCommunicationAllowedStateCallbackWrapper,
+          SatelliteCommunicationAllowedStateCallback>
+          sSatelliteCommunicationAllowedStateCallbackWrapperMap = new ConcurrentHashMap<>();
+
   private final SatelliteManager mSatelliteManager;
   private final SubscriptionManager mSubscriptionManager;
   private final TelephonyManager mTelephonyManager;
@@ -124,11 +140,31 @@
    * Datagram type indicating that the datagram to be sent or received is of type location sharing.
    */
   public static final int DATAGRAM_TYPE_LOCATION_SHARING = 2;
-
+  /**
+   * This type of datagram is used to keep the device in satellite connected state.
+   */
+  public static final int DATAGRAM_TYPE_KEEP_ALIVE = 3;
+  /**
+   * Datagram type indicating that the datagram to be sent or received is of type SOS message and
+   * is the last message to emergency service provider indicating still needs help.
+   */
+  public static final int DATAGRAM_TYPE_LAST_SOS_MESSAGE_STILL_NEED_HELP = 4;
+  /**
+   * Datagram type indicating that the datagram to be sent or received is of type SOS message and
+   * is the last message to emergency service provider indicating no more help is needed.
+   */
+  public static final int DATAGRAM_TYPE_LAST_SOS_MESSAGE_NO_HELP_NEEDED = 5;
   /** @hide */
   @IntDef(
       prefix = "DATAGRAM_TYPE_",
-      value = {DATAGRAM_TYPE_UNKNOWN, DATAGRAM_TYPE_SOS_MESSAGE, DATAGRAM_TYPE_LOCATION_SHARING})
+      value = {
+              DATAGRAM_TYPE_UNKNOWN,
+              DATAGRAM_TYPE_SOS_MESSAGE,
+              DATAGRAM_TYPE_LOCATION_SHARING,
+              DATAGRAM_TYPE_KEEP_ALIVE,
+              DATAGRAM_TYPE_LAST_SOS_MESSAGE_STILL_NEED_HELP,
+              DATAGRAM_TYPE_LAST_SOS_MESSAGE_NO_HELP_NEEDED
+      })
   @Retention(RetentionPolicy.SOURCE)
   public @interface DatagramType {}
 
@@ -172,6 +208,22 @@
   /** Satellite modem is unavailable. */
   public static final int SATELLITE_MODEM_STATE_UNAVAILABLE = 5;
   /**
+   * The satellite modem is powered on but the device is not registered to a satellite cell.
+   */
+  public static final int SATELLITE_MODEM_STATE_NOT_CONNECTED = 6;
+  /**
+   * The satellite modem is powered on and the device is registered to a satellite cell.
+   */
+  public static final int SATELLITE_MODEM_STATE_CONNECTED = 7;
+  /**
+   * The satellite modem is being powered on.
+   */
+  public static final int SATELLITE_MODEM_STATE_ENABLING_SATELLITE = 8;
+  /**
+   * The satellite modem is being powered off.
+   */
+  public static final int SATELLITE_MODEM_STATE_DISABLING_SATELLITE = 9;
+  /**
    * Satellite modem state is unknown. This generic modem state should be used only when the modem
    * state cannot be mapped to other specific modem states.
    */
@@ -187,6 +239,10 @@
         SATELLITE_MODEM_STATE_DATAGRAM_RETRYING,
         SATELLITE_MODEM_STATE_OFF,
         SATELLITE_MODEM_STATE_UNAVAILABLE,
+        SATELLITE_MODEM_STATE_NOT_CONNECTED,
+        SATELLITE_MODEM_STATE_CONNECTED,
+        SATELLITE_MODEM_STATE_ENABLING_SATELLITE,
+        SATELLITE_MODEM_STATE_DISABLING_SATELLITE,
         SATELLITE_MODEM_STATE_UNKNOWN
       })
   @Retention(RetentionPolicy.SOURCE)
@@ -233,6 +289,16 @@
    */
   public static final int SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVE_FAILED = 7;
   /**
+   * A transition state indicating that Telephony is waiting for satellite modem to connect to a
+   * satellite network before sending a datagram or polling for datagrams. If the satellite modem
+   * successfully connects to a satellite network, either
+   * {@link #SATELLITE_DATAGRAM_TRANSFER_STATE_SENDING} or
+   * {@link #SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVING} will be sent. Otherwise,
+   * either {@link #SATELLITE_DATAGRAM_TRANSFER_STATE_SEND_FAILED} or
+   * {@link #SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVE_FAILED} will be sent.
+   */
+  public static final int SATELLITE_DATAGRAM_TRANSFER_STATE_WAITING_TO_CONNECT = 8;
+  /**
    * The datagram transfer state is unknown. This generic datagram transfer state should be used
    * only when the datagram transfer state cannot be mapped to other specific datagram transfer
    * states.
@@ -251,6 +317,7 @@
         SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVE_SUCCESS,
         SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVE_NONE,
         SATELLITE_DATAGRAM_TRANSFER_STATE_RECEIVE_FAILED,
+        SATELLITE_DATAGRAM_TRANSFER_STATE_WAITING_TO_CONNECT,
         SATELLITE_DATAGRAM_TRANSFER_STATE_UNKNOWN
       })
   @Retention(RetentionPolicy.SOURCE)
@@ -565,6 +632,15 @@
           }
 
           @Override
+          public void onSendDatagramStateChanged(
+                  @SatelliteManager.DatagramType int datagramType,
+                  @SatelliteDatagramTransferState int state,
+                  int sendPendingCount,
+                  @SatelliteResult int errorCode) {
+            callback.onSendDatagramStateChanged(datagramType, state, sendPendingCount, errorCode);
+          }
+
+          @Override
           public void onReceiveDatagramStateChanged(
               @SatelliteDatagramTransferState int state,
               int receivePendingCount,
@@ -747,6 +823,46 @@
     }
   }
 
+  private class CarrierRoamingNtnModeListener extends TelephonyCallback
+          implements TelephonyCallback.CarrierRoamingNtnModeListener {
+
+    private CarrierRoamingNtnModeListenerWrapper mListenerWrapper;
+
+    public CarrierRoamingNtnModeListener(CarrierRoamingNtnModeListenerWrapper listenerWrapper) {
+      mListenerWrapper = listenerWrapper;
+    }
+
+    @Override
+    public void onCarrierRoamingNtnModeChanged(boolean active) {
+      logd("onCarrierRoamingNtnModeChanged: active=" + active);
+      mListenerWrapper.onCarrierRoamingNtnModeChanged(active);
+    }
+  }
+
+  /** Register for carrier roaming non-terrestrial network mode changes. */
+  public void registerForCarrierRoamingNtnModeChanged(int subId,
+          @NonNull @CallbackExecutor Executor executor,
+          @NonNull CarrierRoamingNtnModeListenerWrapper listener) {
+    logd("registerForCarrierRoamingNtnModeChanged: subId=" + subId);
+    CarrierRoamingNtnModeListener internalListener = new CarrierRoamingNtnModeListener(listener);
+    sCarrierRoamingNtnModeListenerWrapperMap.put(listener, internalListener);
+
+    TelephonyManager tm = mTelephonyManager.createForSubscriptionId(subId);
+    tm.registerTelephonyCallback(executor, internalListener);
+  }
+
+  /** Unregister for carrier roaming non-terrestrial network mode changes. */
+  public void unregisterForCarrierRoamingNtnModeChanged(int subId,
+          @NonNull CarrierRoamingNtnModeListenerWrapper listener) {
+    logd("unregisterForCarrierRoamingNtnModeChanged: subId=" + subId);
+    CarrierRoamingNtnModeListener internalListener =
+            sCarrierRoamingNtnModeListenerWrapperMap.get(listener);
+    if (internalListener != null) {
+      TelephonyManager tm = mTelephonyManager.createForSubscriptionId(subId);
+      tm.unregisterTelephonyCallback(internalListener);
+    }
+  }
+
   /** Poll pending satellite datagrams over satellite. */
   public void pollPendingDatagrams(
       @NonNull @CallbackExecutor Executor executor,
@@ -1170,6 +1286,100 @@
     return mSatelliteManager.getSatellitePlmnsForCarrier(subId);
   }
 
+  /** Registers for the satellite supported state changed. */
+  @SatelliteResult
+  public int registerForSupportedStateChanged(
+          @NonNull @CallbackExecutor Executor executor,
+          @NonNull SatelliteSupportedStateCallbackWrapper callback) {
+    SatelliteSupportedStateCallback internalCallback =
+            new SatelliteSupportedStateCallback() {
+              @Override
+              public void onSatelliteSupportedStateChanged(boolean supported) {
+                callback.onSatelliteSupportedStateChanged(supported);
+              }
+            };
+    sSatelliteSupportedStateCallbackWrapperMap.put(callback, internalCallback);
+    int result =
+            mSatelliteManager.registerForSupportedStateChanged(executor, internalCallback);
+    return result;
+  }
+
+  /** Request to get the {@link SatelliteSessionStatsWrapper} of the satellite service. */
+  public void requestSessionStats(
+          @NonNull @CallbackExecutor Executor executor,
+          @NonNull OutcomeReceiver<SatelliteSessionStatsWrapper,
+                  SatelliteExceptionWrapper> callback) {
+    OutcomeReceiver internalCallback =
+            new OutcomeReceiver<SatelliteSessionStats, SatelliteException>() {
+              @Override
+              public void onResult(SatelliteSessionStats result) {
+                SatelliteSessionStatsWrapper statsWrapper = new SatelliteSessionStatsWrapper
+                        .Builder()
+                        .setCountOfSuccessfulUserMessages(result.getCountOfSuccessfulUserMessages())
+                        .setCountOfUnsuccessfulUserMessages(
+                                result.getCountOfUnsuccessfulUserMessages())
+                        .setCountOfTimedOutUserMessagesWaitingForConnection(
+                                result.getCountOfTimedOutUserMessagesWaitingForConnection())
+                        .setCountOfTimedOutUserMessagesWaitingForAck(
+                                result.getCountOfTimedOutUserMessagesWaitingForAck())
+                        .setCountOfUserMessagesInQueueToBeSent(
+                                result.getCountOfUserMessagesInQueueToBeSent())
+                        .build();
+                callback.onResult(statsWrapper);
+              }
+
+              @Override
+              public void onError(SatelliteException exception) {
+                callback.onError(new SatelliteExceptionWrapper(exception.getErrorCode()));
+              }
+            };
+    mSatelliteManager.requestSessionStats(executor, internalCallback);
+  }
+
+  /**
+   * Unregisters for the satellite supported state changed. If callback was not registered before,
+   * the request will be ignored.
+   */
+  public void unregisterForSupportedStateChanged(
+          @NonNull SatelliteSupportedStateCallbackWrapper callback) {
+    SatelliteSupportedStateCallback internalCallback =
+            sSatelliteSupportedStateCallbackWrapperMap.get(callback);
+    if (internalCallback != null) {
+      mSatelliteManager.unregisterForSupportedStateChanged(internalCallback);
+    }
+  }
+
+  /** Registers for the satellite communication allowed state changed. */
+  @SatelliteResult
+  public int registerForCommunicationAllowedStateChanged(
+          @NonNull @CallbackExecutor Executor executor,
+          @NonNull SatelliteCommunicationAllowedStateCallbackWrapper callback) {
+    SatelliteCommunicationAllowedStateCallback internalCallback =
+            new SatelliteCommunicationAllowedStateCallback() {
+              @Override
+              public void onSatelliteCommunicationAllowedStateChanged(boolean supported) {
+                callback.onSatelliteCommunicationAllowedStateChanged(supported);
+              }
+            };
+    sSatelliteCommunicationAllowedStateCallbackWrapperMap.put(callback, internalCallback);
+    int result = mSatelliteManager.registerForCommunicationAllowedStateChanged(executor,
+            internalCallback);
+    return result;
+  }
+
+  /**
+   * Unregisters for the satellite communication allowed state changed. If callback was not
+   * registered before, the request will be ignored.
+   */
+  public void unregisterForCommunicationAllowedStateChanged(
+          @NonNull SatelliteCommunicationAllowedStateCallbackWrapper callback) {
+    SatelliteCommunicationAllowedStateCallback internalCallback =
+            sSatelliteCommunicationAllowedStateCallbackWrapperMap.get(callback);
+    if (internalCallback != null) {
+      mSatelliteManager.unregisterForCommunicationAllowedStateChanged(internalCallback);
+    }
+  }
+
   @Nullable
   private ServiceState getServiceStateForSubscriptionId(int subId) {
     if (!mSubscriptionManager.isValidSubscriptionId(subId)) {
diff --git a/satellite_client/src/android/telephony/satellite/wrapper/SatelliteSessionStatsWrapper.java b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteSessionStatsWrapper.java
new file mode 100644
index 0000000..81969e9
--- /dev/null
+++ b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteSessionStatsWrapper.java
@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony.satellite.wrapper;
+
+import android.annotation.NonNull;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import java.util.Objects;
+
+public class SatelliteSessionStatsWrapper implements Parcelable {
+    private int mCountOfSuccessfulUserMessages;
+    private int mCountOfUnsuccessfulUserMessages;
+    private int mCountOfTimedOutUserMessagesWaitingForConnection;
+    private int mCountOfTimedOutUserMessagesWaitingForAck;
+    private int mCountOfUserMessagesInQueueToBeSent;
+
+    /**
+     * SatelliteSessionStats constructor
+     * @param  builder Builder to create SatelliteSessionStats object/
+     */
+    public SatelliteSessionStatsWrapper(@NonNull Builder builder) {
+        mCountOfSuccessfulUserMessages = builder.mCountOfSuccessfulUserMessages;
+        mCountOfUnsuccessfulUserMessages = builder.mCountOfUnsuccessfulUserMessages;
+        mCountOfTimedOutUserMessagesWaitingForConnection =
+                builder.mCountOfTimedOutUserMessagesWaitingForConnection;
+        mCountOfTimedOutUserMessagesWaitingForAck =
+                builder.mCountOfTimedOutUserMessagesWaitingForAck;
+        mCountOfUserMessagesInQueueToBeSent = builder.mCountOfUserMessagesInQueueToBeSent;
+    }
+
+    private SatelliteSessionStatsWrapper(Parcel in) {
+        readFromParcel(in);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(@NonNull Parcel out, int flags) {
+        out.writeInt(mCountOfSuccessfulUserMessages);
+        out.writeInt(mCountOfUnsuccessfulUserMessages);
+        out.writeInt(mCountOfTimedOutUserMessagesWaitingForConnection);
+        out.writeInt(mCountOfTimedOutUserMessagesWaitingForAck);
+        out.writeInt(mCountOfUserMessagesInQueueToBeSent);
+    }
+
+    @NonNull
+    public static final Parcelable.Creator<SatelliteSessionStatsWrapper> CREATOR =
+            new Parcelable.Creator<>() {
+                @Override
+                public SatelliteSessionStatsWrapper createFromParcel(Parcel in) {
+                    return new SatelliteSessionStatsWrapper(in);
+                }
+
+                @Override
+                public SatelliteSessionStatsWrapper[] newArray(int size) {
+                    return new SatelliteSessionStatsWrapper[size];
+                }
+            };
+
+    @Override
+    @NonNull
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("countOfSuccessfulUserMessages:");
+        sb.append(mCountOfSuccessfulUserMessages);
+        sb.append(",");
+
+        sb.append("countOfUnsuccessfulUserMessages:");
+        sb.append(mCountOfUnsuccessfulUserMessages);
+        sb.append(",");
+
+        sb.append("countOfTimedOutUserMessagesWaitingForConnection:");
+        sb.append(mCountOfTimedOutUserMessagesWaitingForConnection);
+        sb.append(",");
+
+        sb.append("countOfTimedOutUserMessagesWaitingForAck:");
+        sb.append(mCountOfTimedOutUserMessagesWaitingForAck);
+        sb.append(",");
+
+        sb.append("countOfUserMessagesInQueueToBeSent:");
+        sb.append(mCountOfUserMessagesInQueueToBeSent);
+        return sb.toString();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        SatelliteSessionStatsWrapper that = (SatelliteSessionStatsWrapper) o;
+        return mCountOfSuccessfulUserMessages == that.mCountOfSuccessfulUserMessages
+                && mCountOfUnsuccessfulUserMessages == that.mCountOfUnsuccessfulUserMessages
+                && mCountOfTimedOutUserMessagesWaitingForConnection
+                == that.mCountOfTimedOutUserMessagesWaitingForConnection
+                && mCountOfTimedOutUserMessagesWaitingForAck
+                == that.mCountOfTimedOutUserMessagesWaitingForAck
+                && mCountOfUserMessagesInQueueToBeSent
+                == that.mCountOfUserMessagesInQueueToBeSent;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(mCountOfSuccessfulUserMessages, mCountOfUnsuccessfulUserMessages,
+                mCountOfTimedOutUserMessagesWaitingForConnection,
+                mCountOfTimedOutUserMessagesWaitingForAck,
+                mCountOfUserMessagesInQueueToBeSent);
+    }
+
+    public int getCountOfSuccessfulUserMessages() {
+        return mCountOfSuccessfulUserMessages;
+    }
+
+    public int getCountOfUnsuccessfulUserMessages() {
+        return mCountOfUnsuccessfulUserMessages;
+    }
+
+    public int getCountOfTimedOutUserMessagesWaitingForConnection() {
+        return mCountOfTimedOutUserMessagesWaitingForConnection;
+    }
+
+    public int getCountOfTimedOutUserMessagesWaitingForAck() {
+        return mCountOfTimedOutUserMessagesWaitingForAck;
+    }
+
+    public int getCountOfUserMessagesInQueueToBeSent() {
+        return mCountOfUserMessagesInQueueToBeSent;
+    }
+
+    private void readFromParcel(Parcel in) {
+        mCountOfSuccessfulUserMessages = in.readInt();
+        mCountOfUnsuccessfulUserMessages = in.readInt();
+        mCountOfTimedOutUserMessagesWaitingForConnection = in.readInt();
+        mCountOfTimedOutUserMessagesWaitingForAck = in.readInt();
+        mCountOfUserMessagesInQueueToBeSent = in.readInt();
+    }
+
+    /**
+     * A builder class to create {@link SatelliteSessionStatsWrapper} data object.
+     */
+    public static final class Builder {
+        private int mCountOfSuccessfulUserMessages;
+        private int mCountOfUnsuccessfulUserMessages;
+        private int mCountOfTimedOutUserMessagesWaitingForConnection;
+        private int mCountOfTimedOutUserMessagesWaitingForAck;
+        private int mCountOfUserMessagesInQueueToBeSent;
+
+        /**
+         * Sets countOfSuccessfulUserMessages value of {@link SatelliteSessionStatsWrapper}
+         * and then returns the Builder class.
+         */
+        @NonNull
+        public Builder setCountOfSuccessfulUserMessages(int count) {
+            mCountOfSuccessfulUserMessages = count;
+            return this;
+        }
+
+        /**
+         * Sets countOfUnsuccessfulUserMessages value of {@link SatelliteSessionStatsWrapper}
+         * and then returns the Builder class.
+         */
+        @NonNull
+        public Builder setCountOfUnsuccessfulUserMessages(int count) {
+            mCountOfUnsuccessfulUserMessages = count;
+            return this;
+        }
+
+        /**
+         * Sets countOfTimedOutUserMessagesWaitingForConnection value of
+         * {@link SatelliteSessionStatsWrapper} and then returns the Builder class.
+         */
+        @NonNull
+        public Builder setCountOfTimedOutUserMessagesWaitingForConnection(int count) {
+            mCountOfTimedOutUserMessagesWaitingForConnection = count;
+            return this;
+        }
+
+        /**
+         * Sets countOfTimedOutUserMessagesWaitingForAck value of
+         * {@link SatelliteSessionStatsWrapper} and then returns the Builder class.
+         */
+        @NonNull
+        public Builder setCountOfTimedOutUserMessagesWaitingForAck(int count) {
+            mCountOfTimedOutUserMessagesWaitingForAck = count;
+            return this;
+        }
+
+        /**
+         * Sets countOfUserMessagesInQueueToBeSent value of {@link SatelliteSessionStatsWrapper}
+         * and then returns the Builder class.
+         */
+        @NonNull
+        public Builder setCountOfUserMessagesInQueueToBeSent(int count) {
+            mCountOfUserMessagesInQueueToBeSent = count;
+            return this;
+        }
+
+        /** Returns SatelliteSessionStats object. */
+        @NonNull
+        public SatelliteSessionStatsWrapper build() {
+            return new SatelliteSessionStatsWrapper(this);
+        }
+    }
+}
diff --git a/satellite_client/src/android/telephony/satellite/wrapper/SatelliteSupportedStateCallbackWrapper.java b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteSupportedStateCallbackWrapper.java
new file mode 100644
index 0000000..8915b91
--- /dev/null
+++ b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteSupportedStateCallbackWrapper.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony.satellite.wrapper;
+
+/** A callback class for monitoring satellite supported state change events. */
+public interface SatelliteSupportedStateCallbackWrapper {
+  /**
+   * Called when satellite supported state changes.
+   *
+   * @param supported The new supported state. {@code true} means satellite is supported {@code
+   *     false} means satellite is not supported.
+   */
+  void onSatelliteSupportedStateChanged(boolean supported);
+}
diff --git a/satellite_client/src/android/telephony/satellite/wrapper/SatelliteTransmissionUpdateCallbackWrapper.java b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteTransmissionUpdateCallbackWrapper.java
index 381b397..8235c30 100644
--- a/satellite_client/src/android/telephony/satellite/wrapper/SatelliteTransmissionUpdateCallbackWrapper.java
+++ b/satellite_client/src/android/telephony/satellite/wrapper/SatelliteTransmissionUpdateCallbackWrapper.java
@@ -43,6 +43,20 @@
       @SatelliteManagerWrapper.SatelliteResult int errorCode);
 
   /**
+   * Called when satellite datagram send state changed.
+   *
+   * @param datagramType The datagram type of currently being sent.
+   * @param state The new send datagram transfer state.
+   * @param sendPendingCount The number of datagrams that are currently being sent.
+   * @param errorCode If datagram transfer failed, the reason for failure.
+   *
+   * @hide
+   */
+  default void onSendDatagramStateChanged(@SatelliteManagerWrapper.DatagramType int datagramType,
+          @SatelliteManagerWrapper.SatelliteDatagramTransferState int state, int sendPendingCount,
+          @SatelliteManagerWrapper.SatelliteResult int errorCode) {}
+
+  /**
    * Called when satellite datagram receive state changed.
    *
    * @param state The new receive datagram transfer state.