diff --git a/P25Control.cpp b/P25Control.cpp
index 9273419..dafc9f4 100644
--- a/P25Control.cpp
+++ b/P25Control.cpp
@@ -468,9 +468,6 @@ void CP25Control::writeNetwork(const unsigned char *data, unsigned char type, bo
 
 	switch (type)
 	{
-	case P25_DUID_HEADER:
-		m_network->writeHeader();
-		break;
 	case P25_DUID_LDU1:
 		m_network->writeLDU1(data, m_rfData, m_rfLSD, end);
 		break;
diff --git a/P25Network.cpp b/P25Network.cpp
index 20a65e2..9777b47 100644
--- a/P25Network.cpp
+++ b/P25Network.cpp
@@ -26,17 +26,6 @@
 #include <cassert>
 #include <cstring>
 
-const unsigned char STARTICW[] = {
-	0x00U, 0x02U, 0x02U, 0x0CU, 0x0BU, 0x35U, 0xA3U, 0x00U, 0x00U, 0x00U};
-
-const unsigned char VHDR1[] = {
-	0x60U, 0x02U, 0x02U, 0x0CU, 0x0BU, 0x35U, 0xA3U, 0x1AU, 0x65U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U,
-	0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x08U, 0x00U, 0x00U, 0x00U, 0x00U, 0x02U, 0x2EU};
-
-const unsigned char VHDR2[] = {
-	0x61U, 0x1DU, 0x35U, 0x34U, 0x37U, 0x0AU, 0x22U, 0x35U, 0x3EU, 0x00U, 0x10U, 0x02U, 0x11U, 0x28U, 0x1DU, 0x21U,
-	0x03U, 0x1BU, 0x00U, 0x35U, 0x23U, 0x02U};
-
 const unsigned char REC62[] = {
 	0x62U, 0x02U, 0x02U, 0x0CU, 0x0BU, 0x35U, 0xA3U, 0x1AU, 0x65U, 0x80U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U,
 	0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x02U};
@@ -73,32 +62,6 @@ bool CP25Network::open()
 	return m_socket.open();
 }
 
-bool CP25Network::writeHeader()
-{
-	if (m_debug)
-		CUtils::dump(1U, "P25 Network ICW Sent", STARTICW, 10U);
-
-	bool ret = m_socket.write(STARTICW, 10U, m_address, m_port);
-	if (!ret)
-		return false;
-
-	if (m_debug)
-		CUtils::dump(1U, "P25 Network VHDR1 Sent", VHDR1, 30U);
-
-	ret = m_socket.write(VHDR1, 30U, m_address, m_port);
-	if (!ret)
-		return false;
-
-	if (m_debug)
-		CUtils::dump(1U, "P25 Network VHDR2 Sent", VHDR2, 22U);
-
-	ret = m_socket.write(VHDR2, 22U, m_address, m_port);
-	if (!ret)
-		return false;
-
-	return true;
-}
-
 bool CP25Network::writeLDU1(const unsigned char* ldu1, const CP25Data& control, const CP25LowSpeedData& lsd, bool end)
 {
 	assert(ldu1 != NULL);
diff --git a/P25Network.h b/P25Network.h
index 887ca46..054c772 100644
--- a/P25Network.h
+++ b/P25Network.h
@@ -37,8 +37,6 @@ public:
 
 	void enable(bool enabled);
 
-	bool writeHeader();
-
 	bool writeLDU1(const unsigned char* ldu1, const CP25Data& control, const CP25LowSpeedData& lsd, bool end);
 
 	bool writeLDU2(const unsigned char* ldu2, const CP25Data& control, const CP25LowSpeedData& lsd, bool end);