diff --git a/app/grandstream/app_config.php b/app/grandstream/app_config.php
index 24db7027d5..03c186af80 100644
--- a/app/grandstream/app_config.php
+++ b/app/grandstream/app_config.php
@@ -213,6 +213,14 @@
 		$apps[$x]['default_settings'][$y]['default_setting_enabled'] = "true";
 		$apps[$x]['default_settings'][$y]['default_setting_description'] = "NAT Traversal. 0 - No, 1 - STUN, 2 - keep alive, 3 - UPnP, 4 - Auto, 5 - VPN";
 		$y++;
+		$apps[$x]['default_settings'][$y]['default_setting_uuid'] = "8f4cea83-f4fd-4f21-948a-9f434b46b286";
+		$apps[$x]['default_settings'][$y]['default_setting_category'] = "provision";
+		$apps[$x]['default_settings'][$y]['default_setting_subcategory'] = "grandstream_phonebook_download";
+		$apps[$x]['default_settings'][$y]['default_setting_name'] = "text";
+		$apps[$x]['default_settings'][$y]['default_setting_value'] = "0";
+		$apps[$x]['default_settings'][$y]['default_setting_enabled'] = "true";
+		$apps[$x]['default_settings'][$y]['default_setting_description'] = "0 - Disabled, 1 - Enabled, use HTTP, 2 - Enabled, use TFTP, 3 - Enabled, use HTTPS. Default is 0";
+		$y++;
 		$apps[$x]['default_settings'][$y]['default_setting_uuid'] = "f7bf7fb8-5d2a-46a8-b218-32826c29fd53";
 		$apps[$x]['default_settings'][$y]['default_setting_category'] = "provision";
 		$apps[$x]['default_settings'][$y]['default_setting_subcategory'] = "grandstream_phonebook_download_interval";