diff --git a/resources/templates/provision/cisco/8811/{$mac}.xml b/resources/templates/provision/cisco/8811/{$mac}.xml
index b03271a46c..240cfde12c 100644
--- a/resources/templates/provision/cisco/8811/{$mac}.xml
+++ b/resources/templates/provision/cisco/8811/{$mac}.xml
@@ -103,7 +103,7 @@
 <!-- RTP Parameters -->
 <RTP_Port_Min ua="na">16384</RTP_Port_Min>
 <RTP_Port_Max ua="na">16482</RTP_Port_Max>
-<RTP_Packet_Size ua="na">0.030</RTP_Packet_Size>
+<RTP_Packet_Size ua="na">0.020</RTP_Packet_Size>
 <Max_RTP_ICMP_Err ua="na">0</Max_RTP_ICMP_Err>
 <RTCP_Tx_Interval ua="na">0</RTCP_Tx_Interval>
 <!-- SDP Payload Types -->
diff --git a/resources/templates/provision/cisco/8832/{$mac}.xml b/resources/templates/provision/cisco/8832/{$mac}.xml
index b03271a46c..240cfde12c 100644
--- a/resources/templates/provision/cisco/8832/{$mac}.xml
+++ b/resources/templates/provision/cisco/8832/{$mac}.xml
@@ -103,7 +103,7 @@
 <!-- RTP Parameters -->
 <RTP_Port_Min ua="na">16384</RTP_Port_Min>
 <RTP_Port_Max ua="na">16482</RTP_Port_Max>
-<RTP_Packet_Size ua="na">0.030</RTP_Packet_Size>
+<RTP_Packet_Size ua="na">0.020</RTP_Packet_Size>
 <Max_RTP_ICMP_Err ua="na">0</Max_RTP_ICMP_Err>
 <RTCP_Tx_Interval ua="na">0</RTCP_Tx_Interval>
 <!-- SDP Payload Types -->
diff --git a/resources/templates/provision/cisco/8841/{$mac}.xml b/resources/templates/provision/cisco/8841/{$mac}.xml
index b03271a46c..240cfde12c 100644
--- a/resources/templates/provision/cisco/8841/{$mac}.xml
+++ b/resources/templates/provision/cisco/8841/{$mac}.xml
@@ -103,7 +103,7 @@
 <!-- RTP Parameters -->
 <RTP_Port_Min ua="na">16384</RTP_Port_Min>
 <RTP_Port_Max ua="na">16482</RTP_Port_Max>
-<RTP_Packet_Size ua="na">0.030</RTP_Packet_Size>
+<RTP_Packet_Size ua="na">0.020</RTP_Packet_Size>
 <Max_RTP_ICMP_Err ua="na">0</Max_RTP_ICMP_Err>
 <RTCP_Tx_Interval ua="na">0</RTCP_Tx_Interval>
 <!-- SDP Payload Types -->
diff --git a/resources/templates/provision/cisco/8845/{$mac}.xml b/resources/templates/provision/cisco/8845/{$mac}.xml
index b03271a46c..240cfde12c 100644
--- a/resources/templates/provision/cisco/8845/{$mac}.xml
+++ b/resources/templates/provision/cisco/8845/{$mac}.xml
@@ -103,7 +103,7 @@
 <!-- RTP Parameters -->
 <RTP_Port_Min ua="na">16384</RTP_Port_Min>
 <RTP_Port_Max ua="na">16482</RTP_Port_Max>
-<RTP_Packet_Size ua="na">0.030</RTP_Packet_Size>
+<RTP_Packet_Size ua="na">0.020</RTP_Packet_Size>
 <Max_RTP_ICMP_Err ua="na">0</Max_RTP_ICMP_Err>
 <RTCP_Tx_Interval ua="na">0</RTCP_Tx_Interval>
 <!-- SDP Payload Types -->
diff --git a/resources/templates/provision/cisco/8851/{$mac}.xml b/resources/templates/provision/cisco/8851/{$mac}.xml
index b03271a46c..240cfde12c 100644
--- a/resources/templates/provision/cisco/8851/{$mac}.xml
+++ b/resources/templates/provision/cisco/8851/{$mac}.xml
@@ -103,7 +103,7 @@
 <!-- RTP Parameters -->
 <RTP_Port_Min ua="na">16384</RTP_Port_Min>
 <RTP_Port_Max ua="na">16482</RTP_Port_Max>
-<RTP_Packet_Size ua="na">0.030</RTP_Packet_Size>
+<RTP_Packet_Size ua="na">0.020</RTP_Packet_Size>
 <Max_RTP_ICMP_Err ua="na">0</Max_RTP_ICMP_Err>
 <RTCP_Tx_Interval ua="na">0</RTCP_Tx_Interval>
 <!-- SDP Payload Types -->
diff --git a/resources/templates/provision/cisco/8861/{$mac}.xml b/resources/templates/provision/cisco/8861/{$mac}.xml
index b03271a46c..240cfde12c 100644
--- a/resources/templates/provision/cisco/8861/{$mac}.xml
+++ b/resources/templates/provision/cisco/8861/{$mac}.xml
@@ -103,7 +103,7 @@
 <!-- RTP Parameters -->
 <RTP_Port_Min ua="na">16384</RTP_Port_Min>
 <RTP_Port_Max ua="na">16482</RTP_Port_Max>
-<RTP_Packet_Size ua="na">0.030</RTP_Packet_Size>
+<RTP_Packet_Size ua="na">0.020</RTP_Packet_Size>
 <Max_RTP_ICMP_Err ua="na">0</Max_RTP_ICMP_Err>
 <RTCP_Tx_Interval ua="na">0</RTCP_Tx_Interval>
 <!-- SDP Payload Types -->
diff --git a/resources/templates/provision/cisco/8865/{$mac}.xml b/resources/templates/provision/cisco/8865/{$mac}.xml
index cd9338e0fd..10a3104756 100644
--- a/resources/templates/provision/cisco/8865/{$mac}.xml
+++ b/resources/templates/provision/cisco/8865/{$mac}.xml
@@ -103,7 +103,7 @@
 <!-- RTP Parameters -->
 <RTP_Port_Min ua="na">16384</RTP_Port_Min>
 <RTP_Port_Max ua="na">16482</RTP_Port_Max>
-<RTP_Packet_Size ua="na">0.030</RTP_Packet_Size>
+<RTP_Packet_Size ua="na">0.020</RTP_Packet_Size>
 <Max_RTP_ICMP_Err ua="na">0</Max_RTP_ICMP_Err>
 <RTCP_Tx_Interval ua="na">0</RTCP_Tx_Interval>
 <!-- SDP Payload Types -->