diff --git a/src/include/switch_nat.h b/src/include/switch_nat.h
index 9e40546345..492dbfb29d 100644
--- a/src/include/switch_nat.h
+++ b/src/include/switch_nat.h
@@ -56,7 +56,7 @@ SWITCH_DECLARE(const char *) switch_nat_get_type(void);
   \param pool the memory pool to use for long term allocations
   \note Generally called by the core_init
 */
-SWITCH_DECLARE(void) switch_nat_init(switch_memory_pool_t *pool);
+SWITCH_DECLARE(void) switch_nat_init(switch_memory_pool_t *pool, switch_bool_t mapping);
 
 /*! 
   \brief Initilize the rest of the NAT Traversal System
@@ -86,6 +86,11 @@ SWITCH_DECLARE(void) switch_nat_republish(void);
 */
 SWITCH_DECLARE(void) switch_nat_reinit(void);
 
+/*!
+ \brief Update the setting if port mapping will be created
+*/
+SWITCH_DECLARE(void) switch_nat_set_mapping(switch_bool_t mapping);
+
 /*!
  \brief Maps a port through the NAT Traversal System
  \param port Internal port to map
diff --git a/src/include/switch_types.h b/src/include/switch_types.h
index 81cc3fb719..2ab4a18b85 100644
--- a/src/include/switch_types.h
+++ b/src/include/switch_types.h
@@ -265,7 +265,8 @@ typedef enum {
 	SCF_VERBOSE_EVENTS = (1 << 11),
 	SCF_USE_WIN32_MONOTONIC = (1 << 12),
 	SCF_AUTO_SCHEMAS = (1 << 13),
-	SCF_MINIMAL = (1 << 14)
+	SCF_MINIMAL = (1 << 14),
+	SCF_USE_NAT_MAPPING = (1 << 15)
 } switch_core_flag_enum_t;
 typedef uint32_t switch_core_flag_t;
 
diff --git a/src/mod/applications/mod_commands/mod_commands.c b/src/mod/applications/mod_commands/mod_commands.c
index 6fb35598c2..ab402db8f5 100644
--- a/src/mod/applications/mod_commands/mod_commands.c
+++ b/src/mod/applications/mod_commands/mod_commands.c
@@ -329,6 +329,7 @@ SWITCH_STANDARD_API(nat_map_function)
 	switch_port_t external_port = 0;
 	char *tmp = NULL;
 	switch_bool_t sticky = SWITCH_FALSE;
+	switch_bool_t mapping = SWITCH_TRUE;
 
 	if (!cmd) {
 		goto usage;
@@ -363,6 +364,24 @@ SWITCH_STANDARD_API(nat_map_function)
 		goto ok;
 	}
 
+	if (argc < 2) {
+		goto usage;
+	}
+
+	if (argv[0] && switch_stristr("mapping", argv[0])) {
+		if (argv[1] && switch_stristr("enable", argv[1])) {
+			mapping = SWITCH_TRUE;
+		} else if (argv[1] && switch_stristr("disable", argv[1])) {
+			mapping = SWITCH_FALSE;
+		}
+
+		switch_nat_set_mapping(mapping);
+		tmp = switch_nat_status();
+		stream->write_function(stream, tmp);
+		switch_safe_free(tmp);
+		goto ok;
+	}
+
 	if (argc < 3) {
 		goto error;
 	}
@@ -395,7 +414,7 @@ SWITCH_STANDARD_API(nat_map_function)
 	goto ok;
 
  usage:
-	stream->write_function(stream, "USAGE: nat_map [status|reinit|republish] | [add|del] <port> [tcp|udp] [sticky]");
+	stream->write_function(stream, "USAGE: nat_map [status|reinit|republish] | [add|del] <port> [tcp|udp] [sticky] | [mapping] <enable|disable>");
 
   ok:
 
diff --git a/src/switch.c b/src/switch.c
index ad9cdf8e6e..7d4d1a8217 100644
--- a/src/switch.c
+++ b/src/switch.c
@@ -200,7 +200,7 @@ void WINAPI ServiceCtrlHandler(DWORD control)
 /* the main service entry point */
 void WINAPI service_main(DWORD numArgs, char **args)
 {
-	switch_core_flag_t flags = SCF_USE_SQL | SCF_USE_AUTO_NAT | SCF_CALIBRATE_CLOCK | SCF_USE_CLOCK_RT;
+	switch_core_flag_t flags = SCF_USE_SQL | SCF_USE_AUTO_NAT | SCF_USE_NAT_MAPPING | SCF_CALIBRATE_CLOCK | SCF_USE_CLOCK_RT;
 	const char *err = NULL;		/* error value for return from freeswitch initialization */
 
 	/* Override flags if they have been set earlier */
@@ -364,7 +364,7 @@ int main(int argc, char *argv[])
 #ifdef __sun
 	switch_core_flag_t flags = SCF_USE_SQL;
 #else
-	switch_core_flag_t flags = SCF_USE_SQL | SCF_USE_AUTO_NAT | SCF_CALIBRATE_CLOCK | SCF_USE_CLOCK_RT;
+	switch_core_flag_t flags = SCF_USE_SQL | SCF_USE_AUTO_NAT | SCF_USE_NAT_MAPPING | SCF_CALIBRATE_CLOCK | SCF_USE_CLOCK_RT;
 #endif
 	int ret = 0;
 	switch_status_t destroy_status;
@@ -412,6 +412,7 @@ int main(int argc, char *argv[])
 		"\t-nosql                 -- disable internal sql scoreboard\n"
 		"\t-heavy-timer           -- Heavy Timer, possibly more accurate but at a cost\n"
 		"\t-nonat                 -- disable auto nat detection\n"
+		"\t-nonatmap              -- disable auto nat port mapping\n"
 		"\t-nocal                 -- disable clock calibration\n"
 		"\t-nort                  -- disable clock clock_realtime\n"
 		"\t-stop                  -- stop freeswitch\n"
@@ -580,6 +581,11 @@ int main(int argc, char *argv[])
 			known_opt++;
 		}
 
+		if (local_argv[x] && !strcmp(local_argv[x], "-nonatmap")) {
+			flags &= ~SCF_USE_NAT_MAPPING;
+			known_opt++;
+		}
+
 		if (local_argv[x] && !strcmp(local_argv[x], "-heavy-timer")) {
 			flags |= SCF_USE_HEAVY_TIMING;
 			known_opt++;
diff --git a/src/switch_core.c b/src/switch_core.c
index 53f21dfb79..85e795c408 100644
--- a/src/switch_core.c
+++ b/src/switch_core.c
@@ -1398,7 +1398,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_init(switch_core_flag_t flags, switc
 	}
 
 	if (switch_test_flag((&runtime), SCF_USE_AUTO_NAT)) {
-		switch_nat_init(runtime.memory_pool);
+		switch_nat_init(runtime.memory_pool, switch_test_flag((&runtime), SCF_USE_NAT_MAPPING));
 	}
 
 	switch_log_init(runtime.memory_pool, runtime.colorize_console);
diff --git a/src/switch_nat.c b/src/switch_nat.c
index d9110efe18..e9d4b2b9ca 100644
--- a/src/switch_nat.c
+++ b/src/switch_nat.c
@@ -51,6 +51,7 @@ typedef struct {
 	char *descURL;
 	char pub_addr[IP_LEN];
 	char pvt_addr[IP_LEN];
+	switch_bool_t mapping;
 } nat_globals_t;
 
 static nat_globals_t nat_globals;
@@ -207,9 +208,14 @@ static int init_pmp(void)
 	return get_pmp_pubaddr(nat_globals.pub_addr);
 }
 
+SWITCH_DECLARE(void) switch_nat_set_mapping(switch_bool_t mapping)
+{
+	nat_globals.mapping = mapping;
+}
+
 SWITCH_DECLARE(void) switch_nat_reinit(void)
 {
-	switch_nat_init(nat_globals_perm.pool);
+	switch_nat_init(nat_globals_perm.pool, nat_globals.mapping);
 }
 
 switch_status_t init_nat_monitor(switch_memory_pool_t *pool)
@@ -392,7 +398,7 @@ SWITCH_DECLARE(void) switch_nat_thread_stop(void)
 }
 
 
-SWITCH_DECLARE(void) switch_nat_init(switch_memory_pool_t *pool)
+SWITCH_DECLARE(void) switch_nat_init(switch_memory_pool_t *pool, switch_bool_t mapping)
 {
 	/* try free dynamic data structures prior to resetting to 0 */
 	FreeUPNPUrls(&nat_globals.urls);
@@ -405,6 +411,8 @@ SWITCH_DECLARE(void) switch_nat_init(switch_memory_pool_t *pool)
 		nat_globals_perm.pool = pool;
 	}
 
+	nat_globals.mapping = mapping;
+
 	switch_find_local_ip(nat_globals.pvt_addr, sizeof(nat_globals.pvt_addr), NULL, AF_INET);
 
 
@@ -577,6 +585,11 @@ SWITCH_DECLARE(switch_status_t) switch_nat_add_mapping_internal(switch_port_t po
 	switch_status_t status = SWITCH_STATUS_FALSE;
 	switch_event_t *event = NULL;
 
+	if (!nat_globals.mapping) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "NAT port mapping disabled\n");
+		return status;
+	}
+
 	switch (nat_globals.nat_type) {
 	case SWITCH_NAT_TYPE_PMP:
 		status = switch_nat_add_mapping_pmp(port, proto, external_port);
@@ -710,6 +723,12 @@ SWITCH_DECLARE(char *) switch_nat_status(void)
 						  (nat_globals.nat_type == SWITCH_NAT_TYPE_UPNP) ? "UPNP" : (nat_globals.nat_type == SWITCH_NAT_TYPE_PMP ? "NAT-PMP" : "UNKNOWN"),
 						  nat_globals.pub_addr);
 
+	if (nat_globals.mapping) {
+		stream.write_function(&stream, "NAT port mapping enabled.\n");
+	} else {
+		stream.write_function(&stream, "NAT port mapping disabled.\n");
+	}
+
 	switch_api_execute("show", "nat_map", NULL, &stream);
 
 	return stream.data;			/* caller frees */