diff --git a/resources/templates/provision/yealink/t40p/{$mac}.cfg b/resources/templates/provision/yealink/t40p/{$mac}.cfg
index 81f57c9724..d1765d6c67 100644
--- a/resources/templates/provision/yealink/t40p/{$mac}.cfg
+++ b/resources/templates/provision/yealink/t40p/{$mac}.cfg
@@ -666,7 +666,11 @@ account.2.out_dialog_blf_enable = 0
 ##account.X.shared_line =
 
 #Assign account1 as shared line; 0-Disabled (default), 1-Broadsoft SCA, 2-BLA;
-account.2.shared_line =
+{if isset($shared_line_2) }
+account.2.shared_line = {$shared_line_2}
+{else}
+account.2.shared_line = 0
+{/if}
 
 #Configure BLA number for account1 and the subscribe period (in seconds). It ranges from 60 to 7200, the default value is 300.
 account.2.bla_number =
@@ -1169,7 +1173,11 @@ account.3.out_dialog_blf_enable = 0
 ##account.X.shared_line =
 
 #Assign account1 as shared line; 0-Disabled (default), 1-Broadsoft SCA, 2-BLA;
-account.3.shared_line =
+{if isset($shared_line_3) }
+account.3.shared_line = {$shared_line_3}
+{else}
+account.3.shared_line = 0
+{/if}
 
 #Configure BLA number for account1 and the subscribe period (in seconds). It ranges from 60 to 7200, the default value is 300.
 account.3.bla_number =
@@ -1654,7 +1662,11 @@ account.4.out_dialog_blf_enable = 0
 ##account.X.shared_line =
 
 #Assign account1 as shared line; 0-Disabled (default), 1-Broadsoft SCA, 2-BLA;
-account.4.shared_line =
+{if isset($shared_line_4) }
+account.4.shared_line = {$shared_line_4}
+{else}
+account.4.shared_line = 0
+{/if}
 
 #Configure BLA number for account1 and the subscribe period (in seconds). It ranges from 60 to 7200, the default value is 300.
 account.4.bla_number =
@@ -2139,7 +2151,11 @@ account.5.out_dialog_blf_enable = 0
 ##account.X.shared_line =
 
 #Assign account1 as shared line; 0-Disabled (default), 1-Broadsoft SCA, 2-BLA;
-account.5.shared_line =
+{if isset($shared_line_5) }
+account.5.shared_line = {$shared_line_5}
+{else}
+account.5.shared_line = 0
+{/if}
 
 #Configure BLA number for account1 and the subscribe period (in seconds). It ranges from 60 to 7200, the default value is 300.
 account.5.bla_number =
@@ -2623,7 +2639,11 @@ account.6.out_dialog_blf_enable = 0
 ##account.X.shared_line =
 
 #Assign account1 as shared line; 0-Disabled (default), 1-Broadsoft SCA, 2-BLA;
-account.6.shared_line =
+{if isset($shared_line_6) }
+account.6.shared_line = {$shared_line_6}
+{else}
+account.6.shared_line = 0
+{/if}
 
 #Configure BLA number for account1 and the subscribe period (in seconds). It ranges from 60 to 7200, the default value is 300.
 account.6.bla_number =