diff --git a/resources/templates/provision/yealink/t19p/y000000000053.cfg b/resources/templates/provision/yealink/t19p/y000000000053.cfg
index 4fc31c14c7..43be042e2c 100644
--- a/resources/templates/provision/yealink/t19p/y000000000053.cfg
+++ b/resources/templates/provision/yealink/t19p/y000000000053.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t20p/y000000000007.cfg b/resources/templates/provision/yealink/t20p/y000000000007.cfg
index 34c83e883c..2dabf0ebc9 100644
--- a/resources/templates/provision/yealink/t20p/y000000000007.cfg
+++ b/resources/templates/provision/yealink/t20p/y000000000007.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t21p/y000000000052.cfg b/resources/templates/provision/yealink/t21p/y000000000052.cfg
index fc848ec9d6..0a6bbe892e 100644
--- a/resources/templates/provision/yealink/t21p/y000000000052.cfg
+++ b/resources/templates/provision/yealink/t21p/y000000000052.cfg
@@ -314,7 +314,7 @@ sip.call_fail_use_reason.enable = {$yealink_sip_call_fail_use_reason_enable}
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t22p/y000000000005.cfg b/resources/templates/provision/yealink/t22p/y000000000005.cfg
index 66a640b441..2feb6bdd8d 100644
--- a/resources/templates/provision/yealink/t22p/y000000000005.cfg
+++ b/resources/templates/provision/yealink/t22p/y000000000005.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t23g/y000000000044.cfg b/resources/templates/provision/yealink/t23g/y000000000044.cfg
index fe614347ca..c3d5ad5230 100644
--- a/resources/templates/provision/yealink/t23g/y000000000044.cfg
+++ b/resources/templates/provision/yealink/t23g/y000000000044.cfg
@@ -354,7 +354,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t23p/y000000000044.cfg b/resources/templates/provision/yealink/t23p/y000000000044.cfg
index 59432798e7..f313a80937 100644
--- a/resources/templates/provision/yealink/t23p/y000000000044.cfg
+++ b/resources/templates/provision/yealink/t23p/y000000000044.cfg
@@ -354,7 +354,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t26p/y000000000004.cfg b/resources/templates/provision/yealink/t26p/y000000000004.cfg
index 11d4b9d68e..62e58ee480 100644
--- a/resources/templates/provision/yealink/t26p/y000000000004.cfg
+++ b/resources/templates/provision/yealink/t26p/y000000000004.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t27g/y000000000069.cfg b/resources/templates/provision/yealink/t27g/y000000000069.cfg
index 7504413664..1c21f3f56c 100644
--- a/resources/templates/provision/yealink/t27g/y000000000069.cfg
+++ b/resources/templates/provision/yealink/t27g/y000000000069.cfg
@@ -381,7 +381,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t27p/y000000000045.cfg b/resources/templates/provision/yealink/t27p/y000000000045.cfg
index 3fffdf90bb..d3d0642128 100644
--- a/resources/templates/provision/yealink/t27p/y000000000045.cfg
+++ b/resources/templates/provision/yealink/t27p/y000000000045.cfg
@@ -354,7 +354,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t28p/y000000000000.cfg b/resources/templates/provision/yealink/t28p/y000000000000.cfg
index dbce3f899d..888793c877 100644
--- a/resources/templates/provision/yealink/t28p/y000000000000.cfg
+++ b/resources/templates/provision/yealink/t28p/y000000000000.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t29g/y000000000046.cfg b/resources/templates/provision/yealink/t29g/y000000000046.cfg
index 0870053058..02913d6909 100644
--- a/resources/templates/provision/yealink/t29g/y000000000046.cfg
+++ b/resources/templates/provision/yealink/t29g/y000000000046.cfg
@@ -383,7 +383,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t31g/y000000000123.cfg b/resources/templates/provision/yealink/t31g/y000000000123.cfg
index fd0adab2eb..e76aa8a493 100644
--- a/resources/templates/provision/yealink/t31g/y000000000123.cfg
+++ b/resources/templates/provision/yealink/t31g/y000000000123.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t32g/y000000000032.cfg b/resources/templates/provision/yealink/t32g/y000000000032.cfg
index 4ae531554d..5fcc1e14ec 100644
--- a/resources/templates/provision/yealink/t32g/y000000000032.cfg
+++ b/resources/templates/provision/yealink/t32g/y000000000032.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t33g/y000000000124.cfg b/resources/templates/provision/yealink/t33g/y000000000124.cfg
index cbe3c4461d..2c178cfdc9 100644
--- a/resources/templates/provision/yealink/t33g/y000000000124.cfg
+++ b/resources/templates/provision/yealink/t33g/y000000000124.cfg
@@ -624,7 +624,7 @@ voice.jib.wifi.adaptive=
 #######################################################################################
 voice.echo_cancellation =
 voice.cng =
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 ##V84 Add
 voice.ans_nb.enable=
diff --git a/resources/templates/provision/yealink/t34w/y000000000171.cfg b/resources/templates/provision/yealink/t34w/y000000000171.cfg
index 03fb1b9153..cd6e010e85 100644
--- a/resources/templates/provision/yealink/t34w/y000000000171.cfg
+++ b/resources/templates/provision/yealink/t34w/y000000000171.cfg
@@ -621,7 +621,7 @@ voice.jib.wifi.adaptive =
 #######################################################################################
 voice.echo_cancellation =
 voice.cng =
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 ##V84 Add
 voice.ans_nb.enable =
diff --git a/resources/templates/provision/yealink/t38g/y000000000038.cfg b/resources/templates/provision/yealink/t38g/y000000000038.cfg
index 172f2d30d5..1ec3530e9e 100644
--- a/resources/templates/provision/yealink/t38g/y000000000038.cfg
+++ b/resources/templates/provision/yealink/t38g/y000000000038.cfg
@@ -306,7 +306,7 @@ transfer.tran_others_after_conf_enable =
 #######################################################################################
 
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t40g/y000000000076.cfg b/resources/templates/provision/yealink/t40g/y000000000076.cfg
index 36778e652a..2bc91312e8 100644
--- a/resources/templates/provision/yealink/t40g/y000000000076.cfg
+++ b/resources/templates/provision/yealink/t40g/y000000000076.cfg
@@ -355,7 +355,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t40p/y000000000054.cfg b/resources/templates/provision/yealink/t40p/y000000000054.cfg
index 65d2f560ca..1ce14c8bf9 100644
--- a/resources/templates/provision/yealink/t40p/y000000000054.cfg
+++ b/resources/templates/provision/yealink/t40p/y000000000054.cfg
@@ -355,7 +355,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t41p/y000000000036.cfg b/resources/templates/provision/yealink/t41p/y000000000036.cfg
index a9b5a70a89..f09747aff6 100644
--- a/resources/templates/provision/yealink/t41p/y000000000036.cfg
+++ b/resources/templates/provision/yealink/t41p/y000000000036.cfg
@@ -355,7 +355,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t42g/y000000000029.cfg b/resources/templates/provision/yealink/t42g/y000000000029.cfg
index 0b1c924dbf..7b1055ff53 100644
--- a/resources/templates/provision/yealink/t42g/y000000000029.cfg
+++ b/resources/templates/provision/yealink/t42g/y000000000029.cfg
@@ -355,7 +355,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t42s/y000000000067.cfg b/resources/templates/provision/yealink/t42s/y000000000067.cfg
index 44c0d1d49d..1df3ec3f20 100644
--- a/resources/templates/provision/yealink/t42s/y000000000067.cfg
+++ b/resources/templates/provision/yealink/t42s/y000000000067.cfg
@@ -544,7 +544,7 @@ voice.jib.wifi.adaptive=
 #######################################################################################
 voice.echo_cancellation =
 voice.cng =
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 
 ################################################################
diff --git a/resources/templates/provision/yealink/t42u/y000000000116.cfg b/resources/templates/provision/yealink/t42u/y000000000116.cfg
index 9962aa3379..9e8c113aa5 100644
--- a/resources/templates/provision/yealink/t42u/y000000000116.cfg
+++ b/resources/templates/provision/yealink/t42u/y000000000116.cfg
@@ -356,7 +356,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t43u/y000000000107.cfg b/resources/templates/provision/yealink/t43u/y000000000107.cfg
index edb242682d..6f1848843e 100644
--- a/resources/templates/provision/yealink/t43u/y000000000107.cfg
+++ b/resources/templates/provision/yealink/t43u/y000000000107.cfg
@@ -628,7 +628,7 @@ voice.jib.wifi.adaptive=
 #######################################################################################
 voice.echo_cancellation =
 voice.cng =
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 ##V84 Add
 voice.ans_nb.enable=
diff --git a/resources/templates/provision/yealink/t44w/y000000000174.cfg b/resources/templates/provision/yealink/t44w/y000000000174.cfg
index dc5a04a86e..2bd27f9fee 100644
--- a/resources/templates/provision/yealink/t44w/y000000000174.cfg
+++ b/resources/templates/provision/yealink/t44w/y000000000174.cfg
@@ -619,7 +619,7 @@ voice.jib.wifi.adaptive =
 #######################################################################################
 voice.echo_cancellation =
 voice.cng =
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 ##V84 Add
 voice.ans_nb.enable =
diff --git a/resources/templates/provision/yealink/t46g/y000000000028.cfg b/resources/templates/provision/yealink/t46g/y000000000028.cfg
index b115769429..47d6c6f807 100644
--- a/resources/templates/provision/yealink/t46g/y000000000028.cfg
+++ b/resources/templates/provision/yealink/t46g/y000000000028.cfg
@@ -381,7 +381,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t46u/y000000000108.cfg b/resources/templates/provision/yealink/t46u/y000000000108.cfg
index 30f8e014b3..44133f04f5 100644
--- a/resources/templates/provision/yealink/t46u/y000000000108.cfg
+++ b/resources/templates/provision/yealink/t46u/y000000000108.cfg
@@ -619,7 +619,7 @@ voice.jib.wifi.adaptive=
 #######################################################################################
 voice.echo_cancellation =
 voice.cng =
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 ##V84 Add
 voice.ans_nb.enable=
diff --git a/resources/templates/provision/yealink/t48g/y000000000035.cfg b/resources/templates/provision/yealink/t48g/y000000000035.cfg
index 75c2cffaa8..eaba135827 100644
--- a/resources/templates/provision/yealink/t48g/y000000000035.cfg
+++ b/resources/templates/provision/yealink/t48g/y000000000035.cfg
@@ -381,7 +381,7 @@ sip.nat_turn.port =
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =
diff --git a/resources/templates/provision/yealink/t48s/y000000000065.cfg b/resources/templates/provision/yealink/t48s/y000000000065.cfg
index 29f250c337..65c5629ac8 100644
--- a/resources/templates/provision/yealink/t48s/y000000000065.cfg
+++ b/resources/templates/provision/yealink/t48s/y000000000065.cfg
@@ -577,7 +577,7 @@ voice.jib.wifi.adaptive=
 #######################################################################################
 voice.echo_cancellation =
 voice.cng =
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 
 ################################################################
diff --git a/resources/templates/provision/yealink/t49g/y000000000051.cfg b/resources/templates/provision/yealink/t49g/y000000000051.cfg
index 69c857631e..5293d6ac3f 100644
--- a/resources/templates/provision/yealink/t49g/y000000000051.cfg
+++ b/resources/templates/provision/yealink/t49g/y000000000051.cfg
@@ -314,7 +314,7 @@ sip.call_fail_use_reason.enable = {$yealink_sip_call_fail_use_reason_enable}
 ##                                   Echo Cancellation                               ##
 #######################################################################################
 #Enable or disable the voice activity detection feature; 0-Disabled (default), 1-Enabled;
-voice.vad =
+voice.vad = {$yealink_voice_vad}
 
 #Enable or disable the comfortable noise generator; 0-Disabled, 1-Enabled (default);
 voice.cng =