diff --git a/core/api/current.txt b/core/api/current.txt
index 7ef4f770fcd9f..2ba2f5bd2c859 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -41392,6 +41392,7 @@ package android.telephony {
     field public static final String KEY_MMS_MMS_READ_REPORT_ENABLED_BOOL = "enableMMSReadReports";
     field public static final String KEY_MMS_MULTIPART_SMS_ENABLED_BOOL = "enableMultipartSMS";
     field public static final String KEY_MMS_NAI_SUFFIX_STRING = "naiSuffix";
+    field public static final String KEY_MMS_NETWORK_RELEASE_TIMEOUT_MILLIS_INT = "mms_network_release_timeout_millis_int";
     field public static final String KEY_MMS_NOTIFY_WAP_MMSC_ENABLED_BOOL = "enabledNotifyWapMMSC";
     field public static final String KEY_MMS_RECIPIENT_LIMIT_INT = "recipientLimit";
     field public static final String KEY_MMS_SEND_MULTIPART_SMS_AS_SEPARATE_MESSAGES_BOOL = "sendMultipartSmsAsSeparateMessages";
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index bd993f213f2de..87f45010c9558 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -2112,6 +2112,16 @@ public class CarrierConfigManager {
      * is immediately closed (disabling keep-alive).
      */
     public static final String KEY_MMS_CLOSE_CONNECTION_BOOL = "mmsCloseConnection";
+    /**
+     * Waiting time in milliseconds used before releasing an MMS data call. Not tearing down an MMS
+     * data connection immediately helps to reduce the message delivering latency if messaging
+     * continues between all parties in the conversation since the same data connection can be
+     * reused for further messages.
+     *
+     * This timer will control how long the data call will be kept alive before being torn down.
+     */
+    public static final String KEY_MMS_NETWORK_RELEASE_TIMEOUT_MILLIS_INT =
+            "mms_network_release_timeout_millis_int";
 
     /**
      * The flatten {@link android.content.ComponentName componentName} of the activity that can
@@ -8868,6 +8878,7 @@ public class CarrierConfigManager {
         sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_LENGTH_THRESHOLD_INT, -1);
         sDefaults.putInt(KEY_MMS_SMS_TO_MMS_TEXT_THRESHOLD_INT, -1);
         sDefaults.putInt(KEY_MMS_SUBJECT_MAX_LENGTH_INT, 40);
+        sDefaults.putInt(KEY_MMS_NETWORK_RELEASE_TIMEOUT_MILLIS_INT, 5 * 1000);
         sDefaults.putString(KEY_MMS_EMAIL_GATEWAY_NUMBER_STRING, "");
         sDefaults.putString(KEY_MMS_HTTP_PARAMS_STRING, "");
         sDefaults.putString(KEY_MMS_NAI_SUFFIX_STRING, "");