diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index 8ef381d140d6f..9806199003d78 100755
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -2684,6 +2684,30 @@ public class CarrierConfigManager {
         /** Prefix of all Gps.KEY_* constants. */
         public static final String KEY_PREFIX = "gps.";
 
+        /**
+         * Location information during (and after) an emergency call is only provided over control
+         * plane signaling from the network.
+         * @hide
+         */
+        public static final int SUPL_EMERGENCY_MODE_TYPE_CP_ONLY = 0;
+
+        /**
+         * Location information during (and after) an emergency call is provided over the data
+         * plane and serviced by the framework GNSS service, but if it fails, the carrier also
+         * supports control plane backup signaling.
+         * @hide
+         */
+        public static final int SUPL_EMERGENCY_MODE_TYPE_CP_FALLBACK = 1;
+
+        /**
+         * Location information during (and after) an emergency call is provided over the data plane
+         * and serviced by the framework GNSS service only. There is no backup signalling over the
+         * control plane if it fails.
+         * @hide
+         */
+        public static final int SUPL_EMERGENCY_MODE_TYPE_DP_ONLY = 2;
+
+
         /**
          * Determine whether current lpp_mode used for E-911 needs to be kept persistently.
          * {@code false} - not keeping the lpp_mode means using default configuration of gps.conf
@@ -2775,6 +2799,23 @@ public class CarrierConfigManager {
          */
         public static final String KEY_NFW_PROXY_APPS_STRING = KEY_PREFIX + "nfw_proxy_apps";
 
+        /**
+         * Determines whether or not SUPL ES mode supports a control-plane mechanism to get a user's
+         * location in the event that data plane SUPL fails or is otherwise unavailable.
+         * <p>
+         * An integer value determines the support type of this carrier. If this carrier only
+         * supports data plane SUPL ES, then the value will be
+         * {@link #SUPL_EMERGENCY_MODE_TYPE_DP_ONLY}. If the carrier supports control plane fallback
+         * for emergency SUPL, the value will be {@link #SUPL_EMERGENCY_MODE_TYPE_CP_FALLBACK}.
+         * If the carrier does not support data plane SUPL using the framework, the value will be
+         * {@link #SUPL_EMERGENCY_MODE_TYPE_CP_ONLY}.
+         * <p>
+         * The default value for this configuration is {@link #SUPL_EMERGENCY_MODE_TYPE_CP_ONLY}.
+         * @hide
+         */
+        public static final String KEY_ES_SUPL_CONTROL_PLANE_SUPPORT_INT = KEY_PREFIX
+                + "es_supl_control_plane_support_int";
+
         private static PersistableBundle getDefaults() {
             PersistableBundle defaults = new PersistableBundle();
             defaults.putBoolean(KEY_PERSIST_LPP_MODE_BOOL, true);
@@ -2789,6 +2830,8 @@ public class CarrierConfigManager {
             defaults.putString(KEY_GPS_LOCK_STRING, "3");
             defaults.putString(KEY_ES_EXTENSION_SEC_STRING, "0");
             defaults.putString(KEY_NFW_PROXY_APPS_STRING, "");
+            defaults.putInt(KEY_ES_SUPL_CONTROL_PLANE_SUPPORT_INT,
+                    SUPL_EMERGENCY_MODE_TYPE_CP_ONLY);
             return defaults;
         }
     }