diff --git a/app/grandstream/app_config.php b/app/grandstream/app_config.php
index 278802ec7f..5f2533113e 100644
--- a/app/grandstream/app_config.php
+++ b/app/grandstream/app_config.php
@@ -750,4 +750,13 @@
 		$apps[$x]['default_settings'][$y]['default_setting_enabled'] = "false";
 		$apps[$x]['default_settings'][$y]['default_setting_description'] = "Allow DHCP Option 120 to Override SIP Server. 0 - No, 1 - Yes. Default is 0";
 		$y++;
+		$apps[$x]['default_settings'][$y]['default_setting_uuid'] = "3addc91a-820c-4a97-8c95-d1b404eae8b2";
+		$apps[$x]['default_settings'][$y]['default_setting_category'] = "provision";
+		$apps[$x]['default_settings'][$y]['default_setting_subcategory'] = "grandstream_ipv_mode";
+		$apps[$x]['default_settings'][$y]['default_setting_name'] = "numeric";
+		$apps[$x]['default_settings'][$y]['default_setting_value'] = "0";
+		$apps[$x]['default_settings'][$y]['default_setting_enabled'] = "false";
+		$apps[$x]['default_settings'][$y]['default_setting_description'] = "Internet Protocol. 0 - Both, prefer IPv4, 1 - Both, prefer IPv6, 2 - IPv4 Only, 3 - IPv6 Only. Default is 0";
+		$y++;
+
 ?>