diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index ef59b1a9bca11..3fbc826faa49b 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -353,6 +353,7 @@ package android {
     field public static final int config_showDefaultAssistant = 17891329; // 0x1110001
     field public static final int config_showDefaultEmergency = 17891330; // 0x1110002
     field public static final int config_showDefaultHome = 17891331; // 0x1110003
+    field public static final int config_systemCaptionsServiceCallsEnabled;
   }
 
   public static final class R.color {
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index c8750b35073eb..8dee45bbf799e 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -4008,6 +4008,11 @@
     -->
     <string name="config_defaultSystemCaptionsManagerService" translatable="false"></string>
 
+    <!-- Indicates whether the system wide captions service should also support
+         call captioning.
+    -->
+    <bool name="config_systemCaptionsServiceCallsEnabled" translatable="false"></bool>
+
     <!-- The package name for the incident report approver app.
         This app is usually PermissionController or an app that replaces it.  When
         a bugreport or incident report with EXPLICT-level sharing flags is going to be
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index dc548b9299b0f..b6b2e01b01f83 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -3362,6 +3362,8 @@
   </staging-public-group>
 
   <staging-public-group type="bool" first-id="0x01cf0000">
+    <!-- @hide @SystemApi -->
+    <public name="config_systemCaptionsServiceCallsEnabled" />
   </staging-public-group>
 
   <staging-public-group type="fraction" first-id="0x01ce0000">