diff --git a/lib/mgmt.h b/lib/mgmt.h
index 59608e7..7ab4fb7 100644
--- a/lib/mgmt.h
+++ b/lib/mgmt.h
@@ -503,6 +503,10 @@ struct mgmt_rp_add_advertising {
 #define MGMT_ADV_FLAG_SEC_1M		(1 << 7)
 #define MGMT_ADV_FLAG_SEC_2M		(1 << 8)
 #define MGMT_ADV_FLAG_SEC_CODED		(1 << 9)
+#define MGMT_ADV_PARAM_DURATION		(1 << 12)
+#define MGMT_ADV_PARAM_TIMEOUT		(1 << 13)
+#define MGMT_ADV_PARAM_INTERVALS	(1 << 14)
+#define MGMT_ADV_PARAM_TX_POWER		(1 << 15)
 
 #define MGMT_OP_REMOVE_ADVERTISING	0x003F
 struct mgmt_cp_remove_advertising {
@@ -701,8 +705,32 @@ struct mgmt_rp_remove_adv_monitor {
 } __packed;
 
 #define MGMT_OP_ADD_EXT_ADV_PARAMS		0x0054
+struct mgmt_cp_add_ext_adv_params {
+	uint8_t		instance;
+	uint32_t	flags;
+	uint16_t	duration;
+	uint16_t	timeout;
+	uint32_t	min_interval;
+	uint32_t	max_interval;
+	int8_t		tx_power;
+} __packed;
+struct mgmt_rp_add_ext_adv_params {
+	uint8_t	instance;
+	int8_t	tx_power;
+	uint8_t	max_adv_data_len;
+	uint8_t	max_scan_rsp_len;
+} __packed;
 
 #define MGMT_OP_ADD_EXT_ADV_DATA		0x0055
+struct mgmt_cp_add_ext_adv_data {
+	uint8_t	instance;
+	uint8_t	adv_data_len;
+	uint8_t	scan_rsp_len;
+	uint8_t	data[0];
+} __packed;
+struct mgmt_rp_add_ext_adv_data {
+	uint8_t	instance;
+} __packed;
 
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {
diff --git a/monitor/packet.c b/monitor/packet.c
index dcbed9f..a97f2af 100644
--- a/monitor/packet.c
+++ b/monitor/packet.c
@@ -6980,8 +6980,8 @@ static void le_set_ext_adv_params_cmd(const void *data, uint8_t size)
 	print_peer_addr_type("Peer address type", cmd->peer_addr_type);
 	print_addr("Peer address", cmd->peer_addr, cmd->peer_addr_type);
 	print_adv_filter_policy("Filter policy", cmd->filter_policy);
-	if (cmd->tx_power == 0xff)
-		print_field("TX power: Host has no preference (0xff)");
+	if (cmd->tx_power == 0x7f)
+		print_field("TX power: Host has no preference (0x7f)");
 	else
 		print_power_level(cmd->tx_power, NULL);
 
diff --git a/src/advertising.c b/src/advertising.c
index 446ad11..538c788 100644
--- a/src/advertising.c
+++ b/src/advertising.c
@@ -82,6 +82,7 @@ struct btd_adv_client {
 	uint32_t min_interval;
 	uint32_t max_interval;
 	int8_t tx_power;
+	mgmt_request_func_t refresh_done_func;
 };
 
 struct dbus_obj_match {
@@ -788,19 +789,9 @@ static uint8_t *generate_scan_rsp(struct btd_adv_client *client,
 	return bt_ad_generate(client->scan, len);
 }
 
-static int refresh_adv(struct btd_adv_client *client, mgmt_request_func_t func,
-						unsigned int *mgmt_id)
+static int get_adv_flags(struct btd_adv_client *client)
 {
-	struct mgmt_cp_add_advertising *cp;
-	uint8_t param_len;
-	uint8_t *adv_data;
-	size_t adv_data_len;
-	uint8_t *scan_rsp;
-	size_t scan_rsp_len = -1;
 	uint32_t flags = 0;
-	unsigned int mgmt_ret;
-
-	DBG("Refreshing advertisement: %s", client->path);
 
 	if (client->type == AD_TYPE_PERIPHERAL) {
 		flags = MGMT_ADV_FLAG_CONNECTABLE;
@@ -812,6 +803,26 @@ static int refresh_adv(struct btd_adv_client *client, mgmt_request_func_t func,
 
 	flags |= client->flags;
 
+	return flags;
+}
+
+static int refresh_legacy_adv(struct btd_adv_client *client,
+				mgmt_request_func_t func,
+				unsigned int *mgmt_id)
+{
+	struct mgmt_cp_add_advertising *cp;
+	uint8_t param_len;
+	uint8_t *adv_data;
+	size_t adv_data_len;
+	uint8_t *scan_rsp;
+	size_t scan_rsp_len = -1;
+	uint32_t flags = 0;
+	unsigned int mgmt_ret;
+
+	DBG("Refreshing advertisement: %s", client->path);
+
+	flags = get_adv_flags(client);
+
 	adv_data = generate_adv_data(client, &flags, &adv_data_len);
 	if (!adv_data || (adv_data_len > calc_max_adv_len(client, flags))) {
 		error("Advertising data too long or couldn't be generated.");
@@ -864,6 +875,74 @@ static int refresh_adv(struct btd_adv_client *client, mgmt_request_func_t func,
 	return 0;
 }
 
+static void add_adv_params_callback(uint8_t status, uint16_t length,
+				    const void *param, void *user_data);
+
+static int refresh_extended_adv(struct btd_adv_client *client,
+				mgmt_request_func_t func, unsigned int *mgmt_id)
+{
+	struct mgmt_cp_add_ext_adv_params cp;
+	uint32_t flags = 0;
+	unsigned int mgmt_ret = 0;
+
+	DBG("Refreshing advertisement parameters: %s", client->path);
+
+	flags = get_adv_flags(client);
+
+	memset(&cp, 0, sizeof(cp));
+	cp.instance = client->instance;
+
+	/* Not all advertising instances will use all possible parameters. The
+	 * included_params bit field tells the kernel which parameters are
+	 * relevant, and sensible defaults will be used for the rest
+	 */
+
+	if (client->duration) {
+		cp.duration = client->duration;
+		flags |= MGMT_ADV_PARAM_DURATION;
+	}
+
+	if (client->min_interval && client->max_interval) {
+		cp.min_interval = client->min_interval;
+		cp.max_interval = client->max_interval;
+		flags |= MGMT_ADV_PARAM_INTERVALS;
+	}
+
+	if (client->tx_power != ADV_TX_POWER_NO_PREFERENCE) {
+		cp.tx_power = client->tx_power;
+		flags |= MGMT_ADV_PARAM_TX_POWER;
+	}
+
+	cp.flags = htobl(flags);
+
+	mgmt_ret = mgmt_send(client->manager->mgmt, MGMT_OP_ADD_EXT_ADV_PARAMS,
+			client->manager->mgmt_index, sizeof(cp), &cp,
+			add_adv_params_callback, client, NULL);
+
+	if (!mgmt_ret) {
+		error("Failed to request extended advertising parameters");
+		return -EINVAL;
+	}
+
+	/* Store callback, called after we set advertising data */
+	client->refresh_done_func = func;
+
+	if (mgmt_id)
+		*mgmt_id = mgmt_ret;
+
+
+	return 0;
+}
+
+static int refresh_advertisement(struct btd_adv_client *client,
+			mgmt_request_func_t func, unsigned int *mgmt_id)
+{
+	if (client->manager->extended_add_cmds)
+		return refresh_extended_adv(client, func, mgmt_id);
+
+	return refresh_legacy_adv(client, func, mgmt_id);
+}
+
 static gboolean client_discoverable_timeout(void *user_data)
 {
 	struct btd_adv_client *client = user_data;
@@ -874,7 +953,7 @@ static gboolean client_discoverable_timeout(void *user_data)
 
 	bt_ad_clear_flags(client->data);
 
-	refresh_adv(client, NULL, NULL);
+	refresh_advertisement(client, NULL, NULL);
 
 	return FALSE;
 }
@@ -1070,7 +1149,8 @@ static void properties_changed(GDBusProxy *proxy, const char *name,
 			continue;
 
 		if (parser->func(iter, client)) {
-			refresh_adv(client, NULL, NULL);
+			refresh_advertisement(client, NULL, NULL);
+
 			break;
 		}
 	}
@@ -1133,6 +1213,112 @@ done:
 	add_client_complete(client, status);
 }
 
+static void add_adv_params_callback(uint8_t status, uint16_t length,
+					  const void *param, void *user_data)
+{
+	struct btd_adv_client *client = user_data;
+	const struct mgmt_rp_add_ext_adv_params *rp = param;
+	struct mgmt_cp_add_ext_adv_data *cp = NULL;
+	uint8_t param_len;
+	uint8_t *adv_data = NULL;
+	size_t adv_data_len;
+	uint8_t *scan_rsp = NULL;
+	size_t scan_rsp_len = -1;
+	uint32_t flags = 0;
+	unsigned int mgmt_ret;
+	dbus_int16_t tx_power;
+
+	if (status)
+		goto fail;
+
+	if (!param || length < sizeof(*rp)) {
+		status = MGMT_STATUS_FAILED;
+		goto fail;
+	}
+
+	DBG("Refreshing advertisement data: %s", client->path);
+
+	/* Update tx power held by client */
+	tx_power = rp->tx_power;
+	if (tx_power != ADV_TX_POWER_NO_PREFERENCE)
+		g_dbus_proxy_set_property_basic(client->proxy, "TxPower",
+				DBUS_TYPE_INT16, &tx_power, NULL, NULL, NULL);
+
+	client->instance = rp->instance;
+
+	flags = get_adv_flags(client);
+
+	adv_data = generate_adv_data(client, &flags, &adv_data_len);
+	if (!adv_data || (adv_data_len > rp->max_adv_data_len)) {
+		error("Advertising data too long or couldn't be generated.");
+		goto fail;
+	}
+
+	scan_rsp = generate_scan_rsp(client, &flags, &scan_rsp_len);
+	if ((!scan_rsp && scan_rsp_len) ||
+			scan_rsp_len > rp->max_scan_rsp_len) {
+		error("Scan data couldn't be generated.");
+		goto fail;
+	}
+
+	param_len = sizeof(struct mgmt_cp_add_advertising) + adv_data_len +
+							scan_rsp_len;
+
+	cp = malloc0(param_len);
+	if (!cp) {
+		error("Couldn't allocate for MGMT!");
+		goto fail;
+	}
+
+	cp->instance = client->instance;
+	cp->adv_data_len = adv_data_len;
+	cp->scan_rsp_len = scan_rsp_len;
+	memcpy(cp->data, adv_data, adv_data_len);
+	memcpy(cp->data + adv_data_len, scan_rsp, scan_rsp_len);
+
+	free(adv_data);
+	free(scan_rsp);
+	adv_data = NULL;
+	scan_rsp = NULL;
+
+	/* Submit request to update instance data */
+	mgmt_ret = mgmt_send(client->manager->mgmt, MGMT_OP_ADD_EXT_ADV_DATA,
+			     client->manager->mgmt_index, param_len, cp,
+			     client->refresh_done_func, client, NULL);
+
+	/* Clear the callback */
+	client->refresh_done_func = NULL;
+
+	if (!mgmt_ret) {
+		error("Failed to add Advertising Data");
+		goto fail;
+	}
+
+	if (client->add_adv_id)
+		client->add_adv_id = mgmt_ret;
+
+	free(cp);
+	cp = NULL;
+
+	return;
+
+fail:
+	if (adv_data)
+		free(adv_data);
+
+	if (scan_rsp)
+		free(scan_rsp);
+
+	if (cp)
+		free(cp);
+
+	if (!status)
+		status = -EINVAL;
+
+	/* Failure for any reason ends this advertising request */
+	add_client_complete(client, status);
+}
+
 static DBusMessage *parse_advertisement(struct btd_adv_client *client)
 {
 	struct adv_parser *parser;
@@ -1191,7 +1377,9 @@ static DBusMessage *parse_advertisement(struct btd_adv_client *client)
 		goto fail;
 	}
 
-	err = refresh_adv(client, add_adv_callback, &client->add_adv_id);
+	err = refresh_advertisement(client, add_adv_callback,
+					&client->add_adv_id);
+
 	if (!err)
 		return NULL;
 
@@ -1270,6 +1458,8 @@ static struct btd_adv_client *client_create(struct btd_adv_manager *manager,
 	client->min_interval = 0;
 	client->max_interval = 0;
 
+	client->refresh_done_func = NULL;
+
 	return client;
 
 fail:
@@ -1586,7 +1776,9 @@ void btd_adv_manager_destroy(struct btd_adv_manager *manager)
 
 static void manager_refresh(void *data, void *user_data)
 {
-	refresh_adv(data, user_data, NULL);
+	struct btd_adv_client *client = data;
+
+	refresh_advertisement(client, user_data, NULL);
 }
 
 void btd_adv_manager_refresh(struct btd_adv_manager *manager)