diff --git a/radio/property.te b/radio/property.te
index 4a2cc46..b4a6aa1 100644
--- a/radio/property.te
+++ b/radio/property.te
@@ -10,6 +10,7 @@ vendor_internal_prop(vendor_gril_prop)
 vendor_internal_prop(vendor_ssrdump_prop)
 vendor_internal_prop(vendor_wifi_version)
 vendor_internal_prop(vendor_imssvc_prop)
+vendor_internal_prop(vendor_ims_tiss_prop)
 vendor_internal_prop(vendor_gps_prop)
 vendor_internal_prop(vendor_tcpdump_log_prop)
 
diff --git a/radio/property_contexts b/radio/property_contexts
index 3f2c917..549c745 100644
--- a/radio/property_contexts
+++ b/radio/property_contexts
@@ -5,6 +5,9 @@ persist.vendor.cbd.                        u:object_r:vendor_cbd_prop:s0
 # for ims service
 persist.vendor.ims.                        u:object_r:vendor_imssvc_prop:s0
 
+# for ims test mode based on go/tiss (do not modify, setprop should not be enabled)
+persist.vendor.ims_tiss.                   u:object_r:vendor_ims_tiss_prop:s0
+
 # for slog
 vendor.sys.silentlog.                      u:object_r:vendor_slog_prop:s0
 vendor.sys.exynos.slog.                    u:object_r:vendor_slog_prop:s0
diff --git a/radio/vendor_ims_app.te b/radio/vendor_ims_app.te
index ed65eae..adedbeb 100644
--- a/radio/vendor_ims_app.te
+++ b/radio/vendor_ims_app.te
@@ -18,3 +18,4 @@ binder_call(vendor_ims_app, rild)
 set_prop(vendor_ims_app, vendor_rild_prop)
 set_prop(vendor_ims_app, radio_prop)
 get_prop(vendor_ims_app, vendor_imssvc_prop)
+get_prop(vendor_ims_app, vendor_ims_tiss_prop)