diff --git a/resources/templates/provision/yealink/t22p/y000000000005.cfg b/resources/templates/provision/yealink/t22p/y000000000005.cfg
index 3d21ff9011..b6422bc0c4 100644
--- a/resources/templates/provision/yealink/t22p/y000000000005.cfg
+++ b/resources/templates/provision/yealink/t22p/y000000000005.cfg
@@ -917,27 +917,42 @@ remote_phonebook.data.1.url =
 remote_phonebook.data.1.name = 
 
 #######################################################################################
-##                                   LDAP                                            ##          
+##         	              LDAP Settings                                              ##
 #######################################################################################
-#Configure the backlight time (in seconds). The valid values are: 1-Always on, 60 (default), 120, 300, 600, 1800.
-security.trust_certificates = 0
-phone_setting.backlight_time = 0
+ldap.enable = {$ldap_enable}
+
+#Configure the search criteria for name and number lookups.
 ldap.name_filter = {$ldap_name_filter}
 ldap.number_filter = {$ldap_number_filter}
+
 ldap.host = {$ldap_host}
+ldap.port = {$ldap_port}
+
 ldap.base = {$ldap_base}
 ldap.user = {$ldap_user}
 ldap.password = {$ldap_password}
-ldap.display_name = {$ldap_display_name}
-ldap.version = {$ldap_version}
-ldap.call_in_lookup = {$ldap_call_in_lookup}
-ldap.dial_lookup = {$ldap_dial_lookup}
-ldap.enable = {$ldap_enable}
-ldap.ldap_sort = {$ldap_sort}
-ldap.port = {$ldap_port}
+
+#Specify the maximum of the displayed search results. It ranges from 1 to 32000, the default value is 50.
 ldap.max_hits = {$ldap_max_hits}
+
 ldap.name_attr = {$ldap_name_attr}
 ldap.numb_attr = {$ldap_numb_attr}
+ldap.display_name = {$ldap_display_name}
+
+#Configure the LDAP version. The valid value is 2 or 3 (default).
+ldap.version = {$ldap_version}
+
+#Conifugre the search delay time. It ranges from 0 to 2000 (default).
+ldap.search_delay = 
+
+#Enable or disable the phone to query the contact name from the LDAP server when receiving an incoming call; 0-Disabled (default), 1-Enabled;
+ldap.call_in_lookup = {$ldap_call_in_lookup}
+
+#Enable or disable the phone to sort the search results in alphabetical order; 0-Disabled (default), 1-Enabled; 
+ldap.ldap_sort =  {$ldap_sort}
+
+#Enable or disable the phone to query the LDAP server when in the pre-dialing or the dialing state; 0-Disabled (default), 1-Enabled;
+ldap.dial_lookup =  {$ldap_dial_lookup}
 
 #######################################################################################
 ##         	              Phone Features                                             ##
diff --git a/resources/templates/provision/yealink/t28p/y000000000000.cfg b/resources/templates/provision/yealink/t28p/y000000000000.cfg
index 48f691212b..a637777c08 100644
--- a/resources/templates/provision/yealink/t28p/y000000000000.cfg
+++ b/resources/templates/provision/yealink/t28p/y000000000000.cfg
@@ -917,27 +917,42 @@ remote_phonebook.data.1.url =
 remote_phonebook.data.1.name = 
 
 #######################################################################################
-##                                   LDAP                                            ##          
+##         	              LDAP Settings                                              ##
 #######################################################################################
-#Configure the backlight time (in seconds). The valid values are: 1-Always on, 60 (default), 120, 300, 600, 1800.
-security.trust_certificates = 0
-phone_setting.backlight_time = 0
+ldap.enable = {$ldap_enable}
+
+#Configure the search criteria for name and number lookups.
 ldap.name_filter = {$ldap_name_filter}
 ldap.number_filter = {$ldap_number_filter}
+
 ldap.host = {$ldap_host}
+ldap.port = {$ldap_port}
+
 ldap.base = {$ldap_base}
 ldap.user = {$ldap_user}
 ldap.password = {$ldap_password}
-ldap.display_name = {$ldap_display_name}
-ldap.version = {$ldap_version}
-ldap.call_in_lookup = {$ldap_call_in_lookup}
-ldap.dial_lookup = {$ldap_dial_lookup}
-ldap.enable = {$ldap_enable}
-ldap.ldap_sort = {$ldap_sort}
-ldap.port = {$ldap_port}
+
+#Specify the maximum of the displayed search results. It ranges from 1 to 32000, the default value is 50.
 ldap.max_hits = {$ldap_max_hits}
+
 ldap.name_attr = {$ldap_name_attr}
 ldap.numb_attr = {$ldap_numb_attr}
+ldap.display_name = {$ldap_display_name}
+
+#Configure the LDAP version. The valid value is 2 or 3 (default).
+ldap.version = {$ldap_version}
+
+#Conifugre the search delay time. It ranges from 0 to 2000 (default).
+ldap.search_delay = 
+
+#Enable or disable the phone to query the contact name from the LDAP server when receiving an incoming call; 0-Disabled (default), 1-Enabled;
+ldap.call_in_lookup = {$ldap_call_in_lookup}
+
+#Enable or disable the phone to sort the search results in alphabetical order; 0-Disabled (default), 1-Enabled; 
+ldap.ldap_sort =  {$ldap_sort}
+
+#Enable or disable the phone to query the LDAP server when in the pre-dialing or the dialing state; 0-Disabled (default), 1-Enabled;
+ldap.dial_lookup =  {$ldap_dial_lookup}
 
 #######################################################################################
 ##         	              Phone Features                                             ##