diff --git a/resources/templates/provision/grandstream/grp2612/{$mac}.xml b/resources/templates/provision/grandstream/grp2612/{$mac}.xml
index 64f1c6b132..03122670b7 100644
--- a/resources/templates/provision/grandstream/grp2612/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp2612/{$mac}.xml
@@ -3535,8 +3535,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
-
+{/if}
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
     <!-- # Mandatory -->
@@ -3942,12 +3945,20 @@
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
-    <P1302>0</P1302>
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
+    <P1301>0</P1301>
+{/if}
 
-    <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+    <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
-    <P1464>0</P1464>
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
+    <P1302>0</P1302>
+{/if}
 
     <!-- ############################################################################## -->
     <!-- ##  Settings/Preferences / Date and Time -->
@@ -4351,7 +4362,7 @@
     <!-- # Enable transfer via non-Transfer MPK. 0 - No, 1 - Yes. Default is 0 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P22162>0</P22162>
+    <P22162>{$grandstream_blind_xfer_blf}</P22162>
 
 
     <!-- # Show Keys Label. 1 - Show, 2 - Hide, 0 - Toggle. Default is 0 -->
diff --git a/resources/templates/provision/grandstream/grp2612w/{$mac}.xml b/resources/templates/provision/grandstream/grp2612w/{$mac}.xml
index d4dd0ea801..b70ea91f9b 100644
--- a/resources/templates/provision/grandstream/grp2612w/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp2612w/{$mac}.xml
@@ -3629,7 +3629,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -4036,12 +4040,20 @@
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
-    <P1302>0</P1302>
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
+    <P1301>0</P1301>
+{/if}
 
-    <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+    <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
-    <P1464>0</P1464>
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
+    <P1302>0</P1302>
+{/if}
 
     <!-- ############################################################################## -->
     <!-- ##  Settings/Preferences / Date and Time -->
@@ -4445,7 +4457,7 @@
     <!-- # Enable transfer via non-Transfer MPK. 0 - No, 1 - Yes. Default is 0 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P22162>0</P22162>
+    <P22162>{$grandstream_blind_xfer_blf}</P22162>
 
 
     <!-- # Show Keys Label. 1 - Show, 2 - Hide, 0 - Toggle. Default is 0 -->
diff --git a/resources/templates/provision/grandstream/grp2613/{$mac}.xml b/resources/templates/provision/grandstream/grp2613/{$mac}.xml
index 6e6ea052bc..83980ee35a 100644
--- a/resources/templates/provision/grandstream/grp2613/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp2613/{$mac}.xml
@@ -4361,7 +4361,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -4776,12 +4780,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
@@ -5165,7 +5177,7 @@
     <!-- # Enable transfer via non-Transfer MPK. 0 - No, 1 - Yes. Default is 0 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P22162>0</P22162>
+    <P22162>{$grandstream_blind_xfer_blf}</P22162>
 
     <!-- # Show VPK Icon. 0 - No, 1 - Yes. Default is 0  -->
     <!-- # Number: 0, 1 -->
diff --git a/resources/templates/provision/grandstream/grp2614/{$mac}.xml b/resources/templates/provision/grandstream/grp2614/{$mac}.xml
index acd47f4145..6c09773ed4 100644
--- a/resources/templates/provision/grandstream/grp2614/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp2614/{$mac}.xml
@@ -5620,7 +5620,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -6091,12 +6095,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
@@ -6500,7 +6512,7 @@
     <!-- # Enable transfer via non-Transfer MPK. 0 - No, 1 - Yes. Default is 0 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P22162>0</P22162>
+    <P22162>{$grandstream_blind_xfer_blf}</P22162>
 
     <!-- # Show VPK Icon. 0 - No, 1 - Yes. Default is 0  -->
     <!-- # Number: 0, 1 -->
diff --git a/resources/templates/provision/grandstream/grp2615/{$mac}.xml b/resources/templates/provision/grandstream/grp2615/{$mac}.xml
index f9d8401fab..d556ed29ac 100644
--- a/resources/templates/provision/grandstream/grp2615/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp2615/{$mac}.xml
@@ -3811,7 +3811,7 @@
     <P670></P670>
 
     <!-- #################################################################### -->
-    <!-- # Account 5 --->
+    <!-- # Account 5 -->
     <!-- #################################################################### -->
     <!-- ########################################## -->
     <!-- # Account 5/General Settings -->
@@ -6559,7 +6559,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7026,13 +7030,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
-
+{/if}
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
@@ -7421,7 +7432,7 @@
     <!-- # Enable transfer via non-Transfer MPK. 0 - No, 1 - Yes. Default is 0 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P22162>0</P22162>
+    <P22162>{$grandstream_blind_xfer_blf}</P22162>
 
     <!-- # Show VPK Icon. 0 - No, 1 - Yes. Default is 0  -->
     <!-- # Number: 0, 1 -->
diff --git a/resources/templates/provision/grandstream/grp2616/{$mac}.xml b/resources/templates/provision/grandstream/grp2616/{$mac}.xml
index 10cfa77ee5..2c3b33fd54 100644
--- a/resources/templates/provision/grandstream/grp2616/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp2616/{$mac}.xml
@@ -4759,7 +4759,7 @@
     <P1770></P1770>
 
     <!-- #################################################################### -->
-    <!-- # Account 6 --->
+    <!-- # Account 6 -->
     <!-- #################################################################### -->
     <!-- ########################################## -->
     <!-- # Account 6/General Settings -->
@@ -7519,7 +7519,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7990,12 +7994,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
@@ -8399,7 +8411,7 @@
     <!-- # Enable transfer via non-Transfer MPK. 0 - No, 1 - Yes. Default is 0 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P22162>0</P22162>
+    <P22162>{$grandstream_blind_xfer_blf}</P22162>
 
     <!-- # Show VPK Icon. 0 - No, 1 - Yes. Default is 0  -->
     <!-- # Number: 0, 1 -->
diff --git a/resources/templates/provision/grandstream/grp26xx/{$mac}.xml b/resources/templates/provision/grandstream/grp26xx/{$mac}.xml
index 513920bece..765d517f9c 100644
--- a/resources/templates/provision/grandstream/grp26xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp26xx/{$mac}.xml
@@ -6856,7 +6856,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7268,12 +7272,20 @@
     <!-- # Headset RX gain(dB). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
-    <P1302>0</P1302>
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
+    <P1301>0</P1301>
+{/if}
 
-    <!-- # Handset TX gain(dB). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+    <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
-    <P1464>0</P1464>
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
+    <P1302>0</P1302>
+{/if}
 
     <!-- ############################################################################## -->
     <!-- ##  Settings/Preferences / Date and Time -->
@@ -7731,7 +7743,7 @@
     <!-- # Enable transfer via non-Transfer MPK. 0 - No, 1 - Yes. Default is 0 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P22162>0</P22162>
+    <P22162>{$grandstream_blind_xfer_blf}</P22162>
 
     <!-- # Show Keys Label. 1 - Show, 2 - Hide, 0 - Toggle. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp116x/{$mac}.xml b/resources/templates/provision/grandstream/gxp116x/{$mac}.xml
index 2a40351ea9..a563803545 100644
--- a/resources/templates/provision/grandstream/gxp116x/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp116x/{$mac}.xml
@@ -1294,12 +1294,20 @@
 <!--  Headset TX gain(db). 1 - -6 decibel, 0 - 0 decibel, 2 - +6 decibel. Default is 0 -->
 <!--  Number: 0, 1, 2 -->
 <!--  Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!--  Headset RX gain(db). 1 - -6 decibel, 0 - 0 decibel, 2 - +6 decibel. Default is 0 -->
 <!--  Number: 0, 1, 2 -->
 <!--  Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!--  Handset TX gain(db). 1 - -6 decibel, 0 - 0 decibel, 2 - +6 decibel. Default is 0 -->
 <!--  Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp140x/{$mac}.xml b/resources/templates/provision/grandstream/gxp140x/{$mac}.xml
index c88f3bd122..9a9b3c0acb 100644
--- a/resources/templates/provision/grandstream/gxp140x/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp140x/{$mac}.xml
@@ -1556,11 +1556,19 @@
     <!--  Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!--  Number: 0, 1, 2 -->
     <!--  Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
-    <!--  Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
-    <!--  Number: 0, 1, 2 -->
-    <!--  Mandatory -->
+{/if}
+    <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+    <!-- # Number: 0, 1, 2 -->
+    <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
     <!--  Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!--  Number: 0, 1, 2 -->
     <!--  Mandatory -->
diff --git a/resources/templates/provision/grandstream/gxp140xbk/{$mac}.xml b/resources/templates/provision/grandstream/gxp140xbk/{$mac}.xml
index 2644d5efe8..b2073dec5f 100644
--- a/resources/templates/provision/grandstream/gxp140xbk/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp140xbk/{$mac}.xml
@@ -1556,11 +1556,19 @@
     <!--  Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!--  Number: 0, 1, 2 -->
     <!--  Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
-    <!--  Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
-    <!--  Number: 0, 1, 2 -->
-    <!--  Mandatory -->
+{/if}
+    <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+    <!-- # Number: 0, 1, 2 -->
+    <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
     <!--  Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!--  Number: 0, 1, 2 -->
     <!--  Mandatory -->
diff --git a/resources/templates/provision/grandstream/gxp1450/{$mac}.xml b/resources/templates/provision/grandstream/gxp1450/{$mac}.xml
index 7ab759d0d6..d9a5c8c87d 100644
--- a/resources/templates/provision/grandstream/gxp1450/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp1450/{$mac}.xml
@@ -2065,12 +2065,20 @@
 <!-- Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- Number: 0, 1, 2 -->
 <!-- Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
-<!-- Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
-<!-- Number: 0, 1, 2 -->
-<!-- Mandatory -->
+<!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+<!-- # Number: 0, 1, 2 -->
+<!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml b/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml
index ce86875608..d222f2762c 100644
--- a/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml
@@ -1872,12 +1872,20 @@
 <!-- Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- Number: 0, 1, 2 -->
 <!-- Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
-<!-- Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
-<!-- Number: 0, 1, 2 -->
-<!-- Mandatory -->
+<!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+<!-- # Number: 0, 1, 2 -->
+<!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
index d4405cfb30..a33b9bbca9 100644
--- a/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
@@ -2710,11 +2710,19 @@
 <!--  Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!--  Number: 0, 1, 2 -->
 <!--  Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 <!--  Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!--  Number: 0, 1, 2 -->
 <!--  Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 <!--  Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!--  Number: 0, 1, 2 -->
 <!--  Mandatory -->
diff --git a/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml
index 49d1539d4a..fe878be725 100644
--- a/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml
@@ -3778,12 +3778,20 @@
 <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6, 3 - -9, 4 - +9, 5 - -12, 6 - -15. Default is 0 -->
 <!-- # Number: 0, 1, 2, 3, 4, 5, 6 -->
 <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- # Number: 0, 1, 2 -->
 <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- # Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp20xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp20xx/{$mac}.xml
index 9dacce64b9..7574d645a2 100644
--- a/resources/templates/provision/grandstream/gxp20xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp20xx/{$mac}.xml
@@ -315,10 +315,18 @@
 <P1300>0</P1300>
 
 <!--  Headset TX gain (dB). 0 - 0 dB, 1 - -6 dB, 2 - +6 dB. -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!--  Headset RX gain (dB). 0 - 0 dB, 1 - -6 dB, 2 - +6 dB. -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!--  Display Language. 0 - English, 3 - Secondary Language, 2 - Chinese -->
 <P342>0</P342>
diff --git a/resources/templates/provision/grandstream/gxp2100/{$mac}.xml b/resources/templates/provision/grandstream/gxp2100/{$mac}.xml
index 3ef6254975..2751136ec3 100644
--- a/resources/templates/provision/grandstream/gxp2100/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2100/{$mac}.xml
@@ -3480,12 +3480,20 @@
 <!--# Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0-->
 <!--# Number: 0, 1, 2-->
 <!--# Mandatory-->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
-<!--# Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0-->
-<!--# Number: 0, 1, 2-->
-<!--# Mandatory-->
+<!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+<!-- # Number: 0, 1, 2 -->
+<!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
 <!--# Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0-->
 <!--# Number: 0, 1, 2-->
diff --git a/resources/templates/provision/grandstream/gxp2124/{$mac}.xml b/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
index 577392e170..353fbb0256 100644
--- a/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
@@ -2295,11 +2295,19 @@
     <!-- Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- Number: 0, 1, 2 -->
     <!-- Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
-    <!-- Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
-    <!-- Number: 0, 1, 2 -->
-    <!-- Mandatory -->
+{/if}
+    <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+    <!-- # Number: 0, 1, 2 -->
+    <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
     <!-- Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- Number: 0, 1, 2 -->
     <!-- Mandatory -->
diff --git a/resources/templates/provision/grandstream/gxp2130/{$mac}.xml b/resources/templates/provision/grandstream/gxp2130/{$mac}.xml
index 24c0af222c..d57c949987 100644
--- a/resources/templates/provision/grandstream/gxp2130/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2130/{$mac}.xml
@@ -7447,7 +7447,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7925,12 +7929,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp2135/{$mac}.xml b/resources/templates/provision/grandstream/gxp2135/{$mac}.xml
index 97771d831f..0c3e22554a 100644
--- a/resources/templates/provision/grandstream/gxp2135/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2135/{$mac}.xml
@@ -7447,7 +7447,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7925,12 +7929,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp2140/{$mac}.xml b/resources/templates/provision/grandstream/gxp2140/{$mac}.xml
index 97771d831f..0c3e22554a 100644
--- a/resources/templates/provision/grandstream/gxp2140/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2140/{$mac}.xml
@@ -7447,7 +7447,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7925,12 +7929,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp2160/{$mac}.xml b/resources/templates/provision/grandstream/gxp2160/{$mac}.xml
index 4e4c4c1346..71d64cc1b8 100644
--- a/resources/templates/provision/grandstream/gxp2160/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2160/{$mac}.xml
@@ -7451,7 +7451,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7929,12 +7933,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp2170/{$mac}.xml b/resources/templates/provision/grandstream/gxp2170/{$mac}.xml
index 0f32d27a20..25ec3e9fc0 100644
--- a/resources/templates/provision/grandstream/gxp2170/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2170/{$mac}.xml
@@ -7447,7 +7447,11 @@
     <!-- # Enable DND Feature. 0 - No, 1 - Yes. Default is 1 -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
+{if isset($dnd)}
+    <P8446>{$dnd}</P8446>
+{else}
     <P8446>1</P8446>
+{/if}
 
     <!-- # Mute Key Functions While Idle. 0 - DND, 1 - Idle Mute, 2 - Disabled. Default is 0 -->
     <!-- # Number: 0,1,2 -->
@@ -7925,12 +7929,20 @@
     <!-- # Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
 
     <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
 
     <!-- # Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- # Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml
index 933c5788df..86e4f4bb02 100644
--- a/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml
@@ -3064,11 +3064,19 @@ Outgoing calls. 0 - No, 1 - Yes. Default is 0 -->
     <!-- Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
     <!-- Number: 0, 1, 2 -->
     <!-- Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
-    <!-- Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
-    <!-- Number: 0, 1, 2 -->
-    <!-- Mandatory -->
+{/if}
+    <!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+    <!-- # Number: 0, 1, 2 -->
+    <!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
+{/if}
     <!-- Date Display Format -->
     <!-- 0: yyyy-mm-dd      eg. 2011-10-31 -->
     <!-- 1: mm-dd-yyyy      eg. 10-31-2011 -->
diff --git a/resources/templates/provision/grandstream/gxp21xxbk/{$mac}.xml b/resources/templates/provision/grandstream/gxp21xxbk/{$mac}.xml
index c16de358c1..c706818fd9 100644
--- a/resources/templates/provision/grandstream/gxp21xxbk/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp21xxbk/{$mac}.xml
@@ -3782,12 +3782,20 @@ Outgoing calls. 0 - No, 1 - Yes. Default is 0 -->
 <!-- Headset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- Number: 0, 1, 2 -->
 <!-- Mandatory -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
-<!-- Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
-<!-- Number: 0, 1, 2 -->
-<!-- Mandatory -->
+<!-- # Headset RX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
+<!-- # Number: 0, 1, 2 -->
+<!-- # Mandatory -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- Handset TX gain(db). 1 - -6, 0 - 0, 2 - +6. Default is 0 -->
 <!-- Number: 0, 1, 2 -->
diff --git a/resources/templates/provision/grandstream/gxp2200/{$mac}.xml b/resources/templates/provision/grandstream/gxp2200/{$mac}.xml
index d1cb119427..6c0051972a 100644
--- a/resources/templates/provision/grandstream/gxp2200/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2200/{$mac}.xml
@@ -3323,11 +3323,19 @@ Account 5 Codec Settings
 
 <!-- Headset TX Gain (dB). 0 - 0, 1 - -6, 2 - +6. Default value is 0 -->
 <!-- Number: 0, 1, 2 -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!-- Headset RX Gain (dB). 0 - 0, 1 - -6, 2 - +6. Default value is 0 -->
 <!-- Number: 0, 1, 2 -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- Headset Type. 0 - Normal Headset, 1 - Plantronics EHS. Default value is 0 -->
 <!-- Number: 0, 1 -->
diff --git a/resources/templates/provision/grandstream/gxp3240/{$mac}.xml b/resources/templates/provision/grandstream/gxp3240/{$mac}.xml
index 64a59d5d63..71dd325f17 100644
--- a/resources/templates/provision/grandstream/gxp3240/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp3240/{$mac}.xml
@@ -3533,11 +3533,19 @@ Account 5 Codec Settings
 
 <!-- Headset TX Gain (dB). 0 - 0, 1 - -6, 2 - +6. Default value is 0 -->
 <!-- Number: 0, 1, 2 -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!-- Headset RX Gain (dB). 0 - 0, 1 - -6, 2 - +6. Default value is 0 -->
 <!-- Number: 0, 1, 2 -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- Headset Type. 0 - Normal Headset, 1 - Plantronics EHS. Default value is 0 -->
 <!-- Number: 0, 1 -->
diff --git a/resources/templates/provision/grandstream/gxv3140/{$mac}.xml b/resources/templates/provision/grandstream/gxv3140/{$mac}.xml
index dafabbf3c5..01a3cc3cfe 100644
--- a/resources/templates/provision/grandstream/gxv3140/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxv3140/{$mac}.xml
@@ -1501,10 +1501,18 @@
 
 
 <!--  Headset TX Gain (dB), Allowed value: -6, 0, 6 -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!--  Headset RX Gain (dB), Allowed value: -6, 0, 6 -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!--  Camera Zoom Mode -->
 <!--  value = 0   1.0:1 (wide and default) -->
diff --git a/resources/templates/provision/grandstream/gxv3175/{$mac}.xml b/resources/templates/provision/grandstream/gxv3175/{$mac}.xml
index 57f0596ff5..6da83e7eb9 100644
--- a/resources/templates/provision/grandstream/gxv3175/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxv3175/{$mac}.xml
@@ -1389,10 +1389,18 @@
 
 
 <!-- Headset TX Gain (dB), Allowed value: -6, 0, 6 -->
-<P1301>0</P1301>
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
+    <P1301>0</P1301>
+{/if}
 
 <!-- Headset RX Gain (dB), Allowed value: -6, 0, 6 -->
-<P1302>0</P1302>
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
+    <P1302>0</P1302>
+{/if}
 
 <!-- Camera Zoom Mode -->
 <!-- value = 0   1.0:1 (wide and default) -->
diff --git a/resources/templates/provision/grandstream/gxv3175v2/{$mac}.xml b/resources/templates/provision/grandstream/gxv3175v2/{$mac}.xml
index 80e94779f0..331264c920 100644
--- a/resources/templates/provision/grandstream/gxv3175v2/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxv3175v2/{$mac}.xml
@@ -865,10 +865,17 @@
     <!--P7052 = -->
     <!--  Maintenance/ Device Manager -->
     <!-- Headset TX Gain (dB), Allowed value: -6, 0, 6 -->
+{if isset($grandstream_headset_tx_gain)}
+    <P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
     <P1301>0</P1301>
+{/if}
     <!-- Headset RX Gain (dB), Allowed value: -6, 0, 6 -->
+{if isset($grandstream_headset_rx_gain)}
+    <P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
     <P1302>0</P1302>
-    <!-- Handset TX gain, 0 ?0dB, 1 ?-6dB, 2 - 6 dB, 3 - -3dB, 4 ?3dB -->
+{/if}    <!-- Handset TX gain, 0 ?0dB, 1 ?-6dB, 2 - 6 dB, 3 - -3dB, 4 ?3dB -->
     <P1464>0</P1464>
     <!-- Camera ExPosure:   Allowed value: 0 - 19 -->
     <P915>12</P915>
diff --git a/resources/templates/provision/grandstream/gxv3240/{$mac}.xml b/resources/templates/provision/grandstream/gxv3240/{$mac}.xml
index f2c92825ce..158da35e69 100644
--- a/resources/templates/provision/grandstream/gxv3240/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxv3240/{$mac}.xml
@@ -5391,11 +5391,19 @@
 
 <!-- RJ9 Headset TX Gain (dB). 0 - 0, 1 - -6, 2 - +6, 3 - +12, 4 - +18, 5 - +24 . Default value is 0 -->
 <!-- Number: 0, 1, 2, 3, 4, 5 -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!-- RJ9 Headset RX Gain (dB). 0 - 0, 1 - -6, 2 - +6. Default value is 0 -->
 <!-- Number: 0, 1, 2 -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- Headset Type. 0 - Normal Headset, 1 - Plantronics EHS, 2 - Jabra EHS. Default value is 0 -->
 <!-- Number: 0, 1 -->
diff --git a/resources/templates/provision/grandstream/gxv3275/{$mac}.xml b/resources/templates/provision/grandstream/gxv3275/{$mac}.xml
index 05054468f5..16a159f70e 100644
--- a/resources/templates/provision/grandstream/gxv3275/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxv3275/{$mac}.xml
@@ -3532,11 +3532,19 @@ Account 5 Codec Settings
 
 <!-- Headset TX Gain (dB). 0 - 0, 1 - -6, 2 - +6. Default value is 0 -->
 <!-- Number: 0, 1, 2 -->
+{if isset($grandstream_headset_tx_gain)}
+<P1301>{$grandstream_headset_tx_gain}</P1301>
+{else}
 <P1301>0</P1301>
+{/if}
 
 <!-- Headset RX Gain (dB). 0 - 0, 1 - -6, 2 - +6. Default value is 0 -->
 <!-- Number: 0, 1, 2 -->
+{if isset($grandstream_headset_rx_gain)}
+<P1302>{$grandstream_headset_rx_gain}</P1302>
+{else}
 <P1302>0</P1302>
+{/if}
 
 <!-- Headset Type. 0 - Normal Headset, 1 - Plantronics EHS. Default value is 0 -->
 <!-- Number: 0, 1 -->