diff --git a/api/current.txt b/api/current.txt
index 1cfc86a33d211..6177c1a9b8615 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -44167,6 +44167,7 @@ package android.telephony {
     field public static final String KEY_USE_HFA_FOR_PROVISIONING_BOOL = "use_hfa_for_provisioning_bool";
     field public static final String KEY_USE_OTASP_FOR_PROVISIONING_BOOL = "use_otasp_for_provisioning_bool";
     field public static final String KEY_USE_RCS_PRESENCE_BOOL = "use_rcs_presence_bool";
+    field public static final String KEY_USE_RCS_SIP_OPTIONS_BOOL = "use_rcs_sip_options_bool";
     field public static final String KEY_VOICEMAIL_NOTIFICATION_PERSISTENT_BOOL = "voicemail_notification_persistent_bool";
     field public static final String KEY_VOICE_PRIVACY_DISABLE_UI_BOOL = "voice_privacy_disable_ui_bool";
     field public static final String KEY_VOLTE_REPLACEMENT_RAT_INT = "volte_replacement_rat_int";
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index d675a21ede014..fccf5e3e2dada 100755
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -1732,9 +1732,8 @@ public class CarrierConfigManager {
             "allow_emergency_video_calls_bool";
 
     /**
-     * Flag indicating whether the carrier supports RCS presence indication for video calls.  When
-     * {@code true}, the carrier supports RCS presence indication for video calls.  When presence
-     * is supported, the device should use the
+     * Flag indicating whether the carrier supports RCS presence indication for
+     * User Capability Exchange (UCE).  When presence is supported, the device should use the
      * {@link android.provider.ContactsContract.Data#CARRIER_PRESENCE} bit mask and set the
      * {@link android.provider.ContactsContract.Data#CARRIER_PRESENCE_VT_CAPABLE} bit to indicate
      * whether each contact supports video calling.  The UI is made aware that presence is enabled
@@ -1744,6 +1743,12 @@ public class CarrierConfigManager {
      */
     public static final String KEY_USE_RCS_PRESENCE_BOOL = "use_rcs_presence_bool";
 
+    /**
+     * Flag indicating whether the carrier supports RCS SIP OPTIONS indication for
+     * User Capability Exchange (UCE).
+     */
+    public static final String KEY_USE_RCS_SIP_OPTIONS_BOOL = "use_rcs_sip_options_bool";
+
     /**
      * The duration in seconds that platform call and message blocking is disabled after the user
      * contacts emergency services. Platform considers values for below cases:
@@ -3373,6 +3378,7 @@ public class CarrierConfigManager {
         sDefaults.putBoolean(KEY_ALLOW_NON_EMERGENCY_CALLS_IN_ECM_BOOL, true);
         sDefaults.putInt(KEY_EMERGENCY_SMS_MODE_TIMER_MS_INT, 0);
         sDefaults.putBoolean(KEY_USE_RCS_PRESENCE_BOOL, false);
+        sDefaults.putBoolean(KEY_USE_RCS_SIP_OPTIONS_BOOL, false);
         sDefaults.putBoolean(KEY_FORCE_IMEI_BOOL, false);
         sDefaults.putInt(
                 KEY_CDMA_ROAMING_MODE_INT, TelephonyManager.CDMA_ROAMING_MODE_RADIO_DEFAULT);