diff --git a/resources/templates/provision/yealink/t56a/y000000000056.cfg b/resources/templates/provision/yealink/t56a/y000000000056.cfg
index 442625cb84..c48f0ebbcf 100644
--- a/resources/templates/provision/yealink/t56a/y000000000056.cfg
+++ b/resources/templates/provision/yealink/t56a/y000000000056.cfg
@@ -313,7 +313,7 @@ sip.limit_server_reason =
 {if isset($yealink_sip_listen_port)}sip.listen_port = {$yealink_sip_listen_port}{else}sip.listen_port = 5060{/if}
 #sip.tls_listen_port =
 {if isset($yealink_sip_listen_port)}sip.tls_listen_port = {$yealink_sip_listen_port}{else}sip.tls_listen_port = 5061{/if}
-sip.trust_ctrl =
+sip.trust_ctrl = {$yealink_trust_ctrl}
 sip.nat_stun.enable =
 sip.nat_stun.server =
 sip.nat_stun.port =
@@ -649,7 +649,7 @@ features.allow_mute =
 features.group_listen_in_talking_enable = 
 features.call_completion_enable = 
 features.call_num_filter = 
-features.direct_ip_call_enable = 
+features.direct_ip_call_enable = {$yealink_direct_ip_call_enable}
 features.relog_offtime = 
 features.ringer_device.is_use_headset = 
 features.factory_pwd_enable = 
@@ -679,7 +679,7 @@ features.barge_in_via_username.enable =
 features.flash_url_dsskey_led.enable = 
 static.features.default_account =
 features.linekey_call_with_default_account = 
-features.hide_feature_access_codes.enable =
+features.hide_feature_access_codes.enable = {$yealink_hide_feature_access_codes_enable}
 static.features.hide_zero_touch_url.enable =
 
 
@@ -714,7 +714,7 @@ features.bluetooth_enable =
 ##It configures BLF LED mode and provides four kinds of definition for the BLF/BLF list key LED status.
 ##For more information, refer to BLF LED Mode on page 218.
 ##The default value is 0.
-features.blf_led_mode = 
+features.blf_led_mode = {$yealink_blf_led_mode}
 
 ##It enables or disables the phone to deal with the Version header in the BLF NOTIFY message sent by the server.
 ##0-Disabled,1-Enabled.
@@ -745,7 +745,7 @@ features.hotline_delay =
 #######################################################################################
 ##                                   Features DTMF                                   ##       
 #######################################################################################
-features.dtmf.hide = 
+features.dtmf.hide = {$yealink_dtmf_hide}
 
 ###Except T20P Model
 features.dtmf.hide_delay = 
@@ -794,8 +794,8 @@ features.save_call_history =
 #######################################################################################
 ##                                   Notification Popups                             ##     
 #######################################################################################
-features.voice_mail_popup.enable=
-features.missed_call_popup.enable=
+features.voice_mail_popup.enable= {$yealink_voice_mail_popup_enable}
+features.missed_call_popup.enable= {$yealink_missed_call_popup_enable}
 features.forward_call_popup.enable=
 features.text_message_popup.enable=
 
@@ -849,9 +849,9 @@ phone_setting.active_backlight_level =
 #######################################################################################
 
 ##It configures the backlight time (in seconds).0, 1, 15, 30, 60, 120, 300, 600 or 1800.
-phone_setting.backlight_time = 
-phone_setting.backgrounds = 
-wallpaper_upload.url =
+phone_setting.backlight_time = {$yealink_backlight_time}
+phone_setting.backgrounds = Config:yealink_t56a_wallpaper.png
+wallpaper_upload.url = {$yealink_t56a_wallpaper}
 
 #######################################################################################
 ##                                   Phone Setting BLF                               ##       
@@ -874,16 +874,16 @@ phone_setting.blf_list_sequence_type =
 ###It enables or disables keypad lock feature.
 ###0-Disabled,1-Enabled.
 ###The default value is 0.
-phone_setting.phone_lock.enable = 
+phone_setting.phone_lock.enable = {$yealink_lock_enable}
 
 
 ###It configures the password for unlocking the keypad.
 ###The default value is 123.
-phone_setting.phone_lock.unlock_pin = 
+phone_setting.phone_lock.unlock_pin = {$yealink_lock_pin}
 
 ###It configures the interval (in seconds) to automatically lock the keypad.
 ###The default value is 0 (the keypad is locked only by long pressing the pound key or pressing the keypad lock key)
-phone_setting.phone_lock.lock_time_out = 
+phone_setting.phone_lock.lock_time_out = {$yealink_lock_timeout}
 phone_setting.emergency.number = {$yealink_emergency_number}
 
 #######################################################################################
@@ -923,10 +923,19 @@ super_search.url =
 ###The following examples change the var's username to "var55" and the var's password to "var55pwd".
 ###static.security.user_name.var = var55
 ###static.security.user_password = var55:var55pwd
-static.security.user_name.user = 
-static.security.user_name.admin = 
-static.security.user_name.var = 
-static.security.user_password = 
+
+{if isset($user_name) }
+static.security.user_name.user = {$user_name}
+static.security.user_password = {$user_name}:{$user_password}
+{/if}
+{if isset($admin_name) }
+static.security.user_name.admin = {$admin_name}
+static.security.user_password = {$admin_name}:{$admin_password}
+{/if}
+{if isset($var_name) }
+static.security.user_name.var = {$var_name}
+static.security.user_password = {$var_name}:{$var_password}
+{/if}
 
 ###It enables or disables the phone to only accept the certificates in the Trusted Certificates list.
 ###0-Disabled,1-Enabled.
@@ -1198,7 +1207,7 @@ distinctive_ring_tones.alert_info.1.ringer =
 #######################################################################################
 ##                                   Call Waiting                                    ##       
 #######################################################################################
-call_waiting.enable = 
+call_waiting.enable = {$yealink_call_waiting}
 call_waiting.tone = 
 call_waiting.on_code =
 call_waiting.off_code =
@@ -1286,7 +1295,7 @@ custom_softkey_talking.url =
 #######################################################################################
 ###It configures the access URL of the firmware file.
 ###The default value is blank.It takes effect after a reboot.
-static.firmware.url =
+static.firmware.url = {$yealink_firmware_url}/{$yealink_firmware_t56a}
 
 #######################################################################################
 ##                                             RTCP                                 ##