diff --git a/overlay/packages/apps/CarrierConfig/res/xml/vendor.xml b/overlay/packages/apps/CarrierConfig/res/xml/vendor.xml
index 2db7e0d0..504e64a5 100644
--- a/overlay/packages/apps/CarrierConfig/res/xml/vendor.xml
+++ b/overlay/packages/apps/CarrierConfig/res/xml/vendor.xml
@@ -443,10 +443,22 @@ IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.-->
         <boolean name="carrier_wfc_ims_available_bool" value="true" />
     </carrier_config>
 
+    <carrier_config mcc="250" mnc="01">
+        <boolean name="carrier_volte_available_bool" value="true" />
+    </carrier_config>
+
     <carrier_config mcc="250" mnc="02">
         <boolean name="carrier_volte_available_bool" value="true" />
     </carrier_config>
 
+    <carrier_config mcc="250" mnc="14">
+        <boolean name="carrier_volte_available_bool" value="true" />
+    </carrier_config>
+
+    <carrier_config mcc="250" mnc="20">
+        <boolean name="carrier_volte_available_bool" value="true" />
+    </carrier_config>
+
     <carrier_config mcc="260" mnc="02">
         <boolean name="carrier_volte_available_bool" value="true" />
         <boolean name="carrier_wfc_ims_available_bool" value="true" />