diff --git a/api/current.txt b/api/current.txt
index fe636c9fa75ca..3e5a695db49f3 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -27703,6 +27703,7 @@ package android.telecomm {
     field public static final java.lang.String EXTRA_CALL_SERVICE_DESCRIPTOR = "android.intent.extra.CALL_SERVICE_DESCRIPTOR";
     field public static final java.lang.String EXTRA_INCOMING_CALL_EXTRAS = "android.intent.extra.INCOMING_CALL_EXTRAS";
     field public static final java.lang.String EXTRA_PACKAGE_NAME = "package";
+    field public static final java.lang.String EXTRA_START_CALL_WITH_SPEAKERPHONE = "android.intent.extra.START_CALL_WITH_SPEAKERPHONE";
   }
 
   public class TelecommManager {
diff --git a/telecomm/java/android/telecomm/TelecommConstants.java b/telecomm/java/android/telecomm/TelecommConstants.java
index 4ca878ee96403..09520979050b1 100644
--- a/telecomm/java/android/telecomm/TelecommConstants.java
+++ b/telecomm/java/android/telecomm/TelecommConstants.java
@@ -16,6 +16,7 @@
 
 package android.telecomm;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.telephony.TelephonyManager;
 
@@ -69,6 +70,13 @@ public final class TelecommConstants {
      */
     public static final String EXTRA_PACKAGE_NAME = "package";
 
+    /**
+     * Optional extra for {@link Intent#ACTION_CALL} containing a boolean that determines whether
+     * the speakerphone should be automatically turned on for an outgoing call.
+     */
+    public static final String EXTRA_START_CALL_WITH_SPEAKERPHONE =
+            "android.intent.extra.START_CALL_WITH_SPEAKERPHONE";
+
     /**
      * Extra for {@link #ACTION_INCOMING_CALL} containing the {@link CallServiceDescriptor} that
      * describes the call service to use for the incoming call.