diff --git a/core/api/current.txt b/core/api/current.txt
index 235c496e999b..728a70d44824 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -40023,6 +40023,7 @@ package android.telephony {
     field public static final String KEY_RCS_BULK_CAPABILITY_EXCHANGE_BOOL = "ims.rcs_bulk_capability_exchange_bool";
     field public static final String KEY_RCS_FEATURE_TAG_ALLOWED_STRING_ARRAY = "ims.rcs_feature_tag_allowed_string_array";
     field public static final String KEY_RCS_REQUIRES_PROVISIONING_BUNDLE = "ims.rcs_requires_provisioning_bundle";
+    field public static final String KEY_USE_SIP_URI_FOR_PRESENCE_SUBSCRIBE_BOOL = "ims.use_sip_uri_for_presence_subscribe_bool";
     field public static final String KEY_WIFI_OFF_DEFERRING_TIME_MILLIS_INT = "ims.wifi_off_deferring_time_millis_int";
   }
 
diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 7d68ee1c1ad6..a64da9a7f9c8 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -13258,6 +13258,7 @@ package android.telephony.ims {
     method @Nullable public android.telephony.ims.RcsContactPresenceTuple getCapabilityTuple(@NonNull String);
     method @NonNull public java.util.List<android.telephony.ims.RcsContactPresenceTuple> getCapabilityTuples();
     method @NonNull public android.net.Uri getContactUri();
+    method @Nullable public android.net.Uri getEntityUri();
     method @NonNull public java.util.Set<java.lang.String> getFeatureTags();
     method public int getRequestResult();
     method public int getSourceType();
@@ -13286,6 +13287,7 @@ package android.telephony.ims {
     method @NonNull public android.telephony.ims.RcsContactUceCapability.PresenceBuilder addCapabilityTuple(@NonNull android.telephony.ims.RcsContactPresenceTuple);
     method @NonNull public android.telephony.ims.RcsContactUceCapability.PresenceBuilder addCapabilityTuples(@NonNull java.util.List<android.telephony.ims.RcsContactPresenceTuple>);
     method @NonNull public android.telephony.ims.RcsContactUceCapability build();
+    method @NonNull public android.telephony.ims.RcsContactUceCapability.PresenceBuilder setEntityUri(@NonNull android.net.Uri);
   }
 
   public class RcsUceAdapter {
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index d7135a57aafd..04e512639852 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -4607,6 +4607,15 @@ public class CarrierConfigManager {
         public static final String KEY_ENABLE_PRESENCE_GROUP_SUBSCRIBE_BOOL =
                 KEY_PREFIX + "enable_presence_group_subscribe_bool";
 
+        /**
+         * Flag indicating whether or not to use SIP URI when send a presence subscribe.
+         * When {@code true}, the device sets the To and Contact header to be SIP URI using
+         * the TelephonyManager#getIsimDomain" API.
+         * If {@code false}, the device uses a TEL URI.
+         */
+        public static final String KEY_USE_SIP_URI_FOR_PRESENCE_SUBSCRIBE_BOOL =
+                KEY_PREFIX + "use_sip_uri_for_presence_subscribe_bool";
+
         /**
          * An integer key associated with the period of time in seconds the non-rcs capability
          * information of each contact is cached on the device.
@@ -4750,6 +4759,7 @@ public class CarrierConfigManager {
             defaults.putBoolean(KEY_ENABLE_PRESENCE_CAPABILITY_EXCHANGE_BOOL, false);
             defaults.putBoolean(KEY_RCS_BULK_CAPABILITY_EXCHANGE_BOOL, false);
             defaults.putBoolean(KEY_ENABLE_PRESENCE_GROUP_SUBSCRIBE_BOOL, false);
+            defaults.putBoolean(KEY_USE_SIP_URI_FOR_PRESENCE_SUBSCRIBE_BOOL, false);
             defaults.putInt(KEY_NON_RCS_CAPABILITIES_CACHE_EXPIRATION_SEC_INT, 30 * 24 * 60 * 60);
             defaults.putBoolean(KEY_RCS_REQUEST_FORBIDDEN_BY_SIP_489_BOOL, false);
             defaults.putLong(KEY_RCS_REQUEST_RETRY_INTERVAL_MILLIS_LONG, 20 * 60 * 1000);
diff --git a/telephony/java/android/telephony/ims/RcsContactUceCapability.java b/telephony/java/android/telephony/ims/RcsContactUceCapability.java
index 91121187a19a..9c36db8176b9 100644
--- a/telephony/java/android/telephony/ims/RcsContactUceCapability.java
+++ b/telephony/java/android/telephony/ims/RcsContactUceCapability.java
@@ -220,6 +220,15 @@ public final class RcsContactUceCapability implements Parcelable {
             return this;
         }
 
+        /**
+         * Set the entity URI related to the contact whose capabilities were requested.
+         * @param entityUri the 'pres' URL of the PRESENTITY publishing presence document.
+         */
+        public @NonNull PresenceBuilder setEntityUri(@NonNull Uri entityUri) {
+            mCapabilities.mEntityUri = entityUri;
+            return this;
+        }
+
         /**
          * @return the RcsContactUceCapability instance.
          */
@@ -232,6 +241,7 @@ public final class RcsContactUceCapability implements Parcelable {
     private @SourceType int mSourceType;
     private @CapabilityMechanism int mCapabilityMechanism;
     private @RequestResult int mRequestResult;
+    private Uri mEntityUri;
 
     private final Set<String> mFeatureTags = new HashSet<>();
     private final List<RcsContactPresenceTuple> mPresenceTuples = new ArrayList<>();
@@ -248,6 +258,7 @@ public final class RcsContactUceCapability implements Parcelable {
         mCapabilityMechanism = in.readInt();
         mSourceType = in.readInt();
         mRequestResult = in.readInt();
+        mEntityUri = in.readParcelable(Uri.class.getClassLoader(), android.net.Uri.class);
         List<String> featureTagList = new ArrayList<>();
         in.readStringList(featureTagList);
         mFeatureTags.addAll(featureTagList);
@@ -260,6 +271,7 @@ public final class RcsContactUceCapability implements Parcelable {
         out.writeInt(mCapabilityMechanism);
         out.writeInt(mSourceType);
         out.writeInt(mRequestResult);
+        out.writeParcelable(mEntityUri, flags);
         out.writeStringList(new ArrayList<>(mFeatureTags));
         out.writeParcelableList(mPresenceTuples, flags);
     }
@@ -361,6 +373,15 @@ public final class RcsContactUceCapability implements Parcelable {
         return mContactUri;
     }
 
+    /**
+     * Retrieve the entity URI of the contact whose presence information is being requested for.
+     * @return the URI representing the 'pres' URL of the PRESENTITY publishing presence document
+     * or {@code null} if the entity uri does not exist in the presence document.
+     */
+    public @Nullable Uri getEntityUri() {
+        return mEntityUri;
+    }
+
     @Override
     public String toString() {
         StringBuilder builder = new StringBuilder("RcsContactUceCapability");
@@ -382,6 +403,13 @@ public final class RcsContactUceCapability implements Parcelable {
         builder.append(mSourceType);
         builder.append(", requestResult=");
         builder.append(mRequestResult);
+        if (Build.IS_ENG) {
+            builder.append("entity uri=");
+            builder.append(mEntityUri != null ? mEntityUri : "null");
+        } else {
+            builder.append("entity uri (isNull)=");
+            builder.append(mEntityUri != null ? "XXX" : "null");
+        }
 
         if (mCapabilityMechanism == CAPABILITY_MECHANISM_PRESENCE) {
             builder.append(", presenceTuples={");