diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index a3232c8..c2e7ec0 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -273,6 +273,9 @@
     <!-- Flag specifying whether VoLTE is availasble on device -->
     <bool name="config_device_volte_available">true</bool>
 
+    <!-- Flag specifying whether VoLTE is availasble on device -->
+    <bool name="config_device_vt_available">true</bool>
+
     <!-- Flag specifying whether WFC over IMS is availasble on device -->
     <bool name="config_device_wfc_ims_available">true</bool>