diff --git a/app/yealink/app_config.php b/app/yealink/app_config.php
index 42078305fb..b42ae26dd7 100755
--- a/app/yealink/app_config.php
+++ b/app/yealink/app_config.php
@@ -100,7 +100,7 @@
 		$apps[$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'] = "";
+		$apps[$x]['default_settings'][$y]['default_setting_description'] = "0-Disabled (default), 1-Forced, 2-Negotiate";
 		$y++;
 		$apps[$x]['default_settings'][$y]['default_setting_uuid'] = "f0704072-c3d9-48df-b89b-2aea6035b3c4";
 		$apps[$x]['default_settings'][$y]['default_setting_category'] = "provision";