diff --git a/system.prop b/system.prop
index e1ea7f2..0bcb974 100644
--- a/system.prop
+++ b/system.prop
@@ -4,7 +4,6 @@
 
 # Audio
 ro.audio.silent=0
-ro.config.vc_call_vol_steps=9
 
 # Bluetooth
 ro.bluetooth.emb_wp_mode=false
diff --git a/vendor.prop b/vendor.prop
index 0924a74..fb6a82b 100644
--- a/vendor.prop
+++ b/vendor.prop
@@ -17,6 +17,7 @@ ro.vendor.mtk_nn_baseline_support=1
 
 # Audio
 ro.audio.monitorRotation=true
+ro.config.vc_call_vol_steps=11
 ro.vendor.mtk_audio_alac_support=1
 ro.vendor.mtk_audio_tuning_tool_ver=V2.2
 ro.vendor.mtk_audio_ape_support=1