diff --git a/vendor.prop b/vendor.prop
index dc00e03..8ae545d 100644
--- a/vendor.prop
+++ b/vendor.prop
@@ -152,6 +152,7 @@ persist.vendor.radio.custom_ecc=1
 persist.vendor.radio.rat_on=combine
 persist.vendor.radio.procedure_bytes=SKIP
 persist.vendor.radio.enableadvancedscan=false
+persist.vendor.radio.mt_sms_ack=30
 
 # SoC
 ro.soc.manufacturer=QTI