diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index b5536a2..683bab6 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -334,6 +334,11 @@
     <!-- Flag specifying whether VoLTE is available on device -->
     <bool name="config_device_volte_available">true</bool>
 
+    <!-- Flag specifying whether VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_vt_available">true</bool>
+
     <!-- Flag specifying whether VoLTE should be available for carrier: independent of
          carrier provisioning. If false: hard disabled. If true: then depends on carrier
          provisioning, availability etc -->
diff --git a/vendor_prop.mk b/vendor_prop.mk
index d7df00b..46dc976 100644
--- a/vendor_prop.mk
+++ b/vendor_prop.mk
@@ -306,3 +306,20 @@ PRODUCT_PROPERTY_OVERRIDES += \
 # UI thread scheduling
 PRODUCT_PROPERTY_OVERRIDES += \
     sys.use_fifo_ui=1
+
+# Volte
+PRODUCT_PROPERTY_OVERRIDES += \
+persist.vendor.radio.force_on_dc=true \
+persist.radio.custom_ecc=1 \
+persist.radio.data_con_rprt=1 \
+persist.vendor.radio.data_ltd_sys_ind=1 \
+persist.radio.data_ltd_sys_ind=1 \
+persist.vendor.radio.ignore_dom_time=10 \
+persist.radio.ignore_dom_time=10 \
+persist.radio.rat_on=combine \
+persist.radio.is_wps_enabled=true \
+persist.radio.videopause.mode=1 \
+persist.radio.sap_silent_pin=1 \
+persist.radio.always_send_plmn=true \
+persist.rcs.supported=1 \
+persist.dbg.ims_volte_enable=1