diff --git a/app/devices/device_profiles.php b/app/devices/device_profiles.php
index 1c03650caa..ec5225f760 100644
--- a/app/devices/device_profiles.php
+++ b/app/devices/device_profiles.php
@@ -17,7 +17,7 @@
 
 	The Initial Developer of the Original Code is
 	Mark J Crane <markjcrane@fusionpbx.com>
-	Copyright (C) 2019 All Rights Reserved.
+	Copyright (C) 2019-2023 All Rights Reserved.
 
 	Contributor(s):
 	Mark J Crane <markjcrane@fusionpbx.com>
@@ -46,18 +46,18 @@
 	$text = $language->get();
 
 //get posted data
-	if (is_array($_POST['profiles'])) {
+	if (!empty($_POST['profiles']) && is_array($_POST['profiles'])) {
 		$action = $_POST['action'];
 		$search = $_POST['search'];
 		$profiles = $_POST['profiles'];
 	}
 
 //get the search
-	$search = strtolower($_REQUEST["search"]);
-	$fields = strtolower($_REQUEST["fields"]);
+	$search = strtolower($_REQUEST["search"] ?? '');
+	$fields = strtolower($_REQUEST["fields"] ?? '');
 
 //process the http post data by action
-	if ($action != '' && is_array($profiles) && @sizeof($profiles) != 0) {
+	if (!empty($action) && !empty($profiles) && is_array($profiles) && @sizeof($profiles) != 0) {
 		switch ($action) {
 			case 'copy':
 				if (permission_exists('device_profile_add')) {
@@ -84,8 +84,8 @@
 	}
 
 //get variables used to control the order
-	$order_by = $_GET["order_by"];
-	$order = $_GET["order"];
+	$order_by = $_GET["order_by"] ?? null;
+	$order = $_GET["order"] ?? null;
 
 //add the search term
 	if (!empty($search)) {
@@ -114,25 +114,25 @@
 //get the count
 	$sql = "select count(*) from v_device_profiles ";
 	$sql .= "where true ";
-	if ($_GET['show'] != "all" || !permission_exists('device_profile_all')) {
+	if (empty($_GET['show']) || $_GET['show'] != "all" || !permission_exists('device_profile_all')) {
 		$sql .= "and (domain_uuid = :domain_uuid or domain_uuid is null) ";
 		$parameters['domain_uuid'] = $domain_uuid;
 	}
-	$sql .= $sql_search;
+	$sql .= $sql_search ?? '';
 	$database = new database;
-	$num_rows = $database->select($sql, $parameters, 'column');
+	$num_rows = $database->select($sql, $parameters ?? null, 'column');
 
 //prepare to page the results
 	$rows_per_page = ($_SESSION['domain']['paging']['numeric'] != '') ? $_SESSION['domain']['paging']['numeric'] : 50;
+	$param = '';
 	if ($search) {
-		$param = "&search=".$search;
+		$param .= "&search=".$search;
 		$param .= "&fields=".$fields;
 	}
-	if ($_GET['show'] == "all" && permission_exists('device_profile_all')) {
+	if (!empty($_GET['show']) && $_GET['show'] == "all" && permission_exists('device_profile_all')) {
 		$param .= "&show=all";
 	}
-	$page = $_GET['page'];
-	if (empty($page)) { $page = 0; $_GET['page'] = 0; }
+	$page = $_GET['page'] ?? 0;
 	list($paging_controls, $rows_per_page) = paging($num_rows, $param, $rows_per_page); //bottom
 	list($paging_controls_mini, $rows_per_page) = paging($num_rows, $param, $rows_per_page, true); //top
 	$offset = $rows_per_page * $page;
@@ -142,7 +142,7 @@
 	$sql .= order_by($order_by, $order, 'device_profile_name', 'asc');
 	$sql .= limit_offset($rows_per_page, $offset);
 	$database = new database;
-	$device_profiles = $database->select($sql, $parameters, 'all');
+	$device_profiles = $database->select($sql, $parameters ?? null, 'all');
 	unset($sql, $parameters);
 
 //create token
@@ -162,17 +162,17 @@
 		echo button::create(['type'=>'button','label'=>$text['button-add'],'icon'=>$_SESSION['theme']['button_icon_add'],'id'=>'btn_add','link'=>'device_profile_edit.php']);
 	}
 	if (permission_exists('device_profile_add') && $device_profiles) {
-		echo button::create(['type'=>'button','label'=>$text['button-copy'],'icon'=>$_SESSION['theme']['button_icon_copy'],'name'=>'btn_copy','onclick'=>"modal_open('modal-copy','btn_copy');"]);
+		echo button::create(['type'=>'button','label'=>$text['button-copy'],'icon'=>$_SESSION['theme']['button_icon_copy'],'id'=>'btn_copy','name'=>'btn_copy','style'=>'display: none;','onclick'=>"modal_open('modal-copy','btn_copy');"]);
 	}
 	if (permission_exists('device_profile_edit') && $device_profiles) {
-		echo button::create(['type'=>'button','label'=>$text['button-toggle'],'icon'=>$_SESSION['theme']['button_icon_toggle'],'name'=>'btn_toggle','onclick'=>"modal_open('modal-toggle','btn_toggle');"]);
+		echo button::create(['type'=>'button','label'=>$text['button-toggle'],'icon'=>$_SESSION['theme']['button_icon_toggle'],'id'=>'btn_toggle','name'=>'btn_toggle','style'=>'display: none;','onclick'=>"modal_open('modal-toggle','btn_toggle');"]);
 	}
 	if (permission_exists('device_profile_delete') && $device_profiles) {
-		echo button::create(['type'=>'button','label'=>$text['button-delete'],'icon'=>$_SESSION['theme']['button_icon_delete'],'name'=>'btn_delete','onclick'=>"modal_open('modal-delete','btn_delete');"]);
+		echo button::create(['type'=>'button','label'=>$text['button-delete'],'icon'=>$_SESSION['theme']['button_icon_delete'],'id'=>'btn_delete','name'=>'btn_delete','style'=>'display: none;','onclick'=>"modal_open('modal-delete','btn_delete');"]);
 	}
 	echo 		"<form id='form_search' class='inline' method='get'>\n";
 	if (permission_exists('device_profile_all')) {
-		if ($_GET['show'] == 'all') {
+		if (!empty($_GET['show']) && $_GET['show'] == 'all') {
 			echo "		<input type='hidden' name='show' value='all'>";
 		}
 		else {
@@ -220,16 +220,16 @@
 	echo "<tr class='list-header'>\n";
 	if (permission_exists('device_profile_add') || permission_exists('device_profile_edit') || permission_exists('device_profile_delete')) {
 		echo "	<th class='checkbox'>\n";
-		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle();' ".($device_profiles ?: "style='visibility: hidden;'").">\n";
+		echo "		<input type='checkbox' id='checkbox_all' name='checkbox_all' onclick='list_all_toggle(); checkbox_on_change(this);' ".(empty($device_profiles) ? "style='visibility: hidden;'" : null).">\n";
 		echo "	</th>\n";
 	}
-	if ($_GET['show'] == "all" && permission_exists('device_profile_all')) {
+	if (!empty($_GET['show']) && $_GET['show'] == "all" && permission_exists('device_profile_all')) {
 		echo th_order_by('domain_name', $text['label-domain'], $order_by, $order, $param);
 	}
 	echo th_order_by('device_profile_name', $text['label-device_profile_name'], $order_by, $order);
 	echo th_order_by('device_profile_enabled', $text['label-device_profile_enabled'], $order_by, $order, null, "class='center'");
 	echo th_order_by('device_profile_description', $text['label-device_profile_description'], $order_by, $order, null, "class='hide-xs'");
-	if (permission_exists('device_profile_edit') && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
+	if (permission_exists('device_profile_edit') && !empty($_SESSION['theme']['list_row_edit_button']['boolean']) && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
 		echo "	<td class='action-button'>&nbsp;</td>\n";
 	}
 	echo "</tr>\n";
@@ -243,11 +243,11 @@
 			echo "<tr class='list-row' href='".$list_row_url."'>\n";
 			if (permission_exists('device_profile_add') || permission_exists('device_profile_edit') || permission_exists('device_profile_delete')) {
 				echo "	<td class='checkbox'>\n";
-				echo "		<input type='checkbox' name='profiles[$x][checked]' id='checkbox_".$x."' value='true' onclick=\"if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
+				echo "		<input type='checkbox' name='profiles[$x][checked]' id='checkbox_".$x."' value='true' onclick=\"checkbox_on_change(this); if (!this.checked) { document.getElementById('checkbox_all').checked = false; }\">\n";
 				echo "		<input type='hidden' name='profiles[$x][uuid]' value='".escape($row['device_profile_uuid'])."' />\n";
 				echo "	</td>\n";
 			}
-			if ($_GET['show'] == "all" && permission_exists('device_profile_all')) {
+			if (!empty($_GET['show']) && $_GET['show'] == "all" && permission_exists('device_profile_all')) {
 				if (!empty($_SESSION['domains'][$row['domain_uuid']]['domain_name'])) {
 					$domain = $_SESSION['domains'][$row['domain_uuid']]['domain_name'];
 				}
@@ -274,7 +274,7 @@
 			}
 			echo "	</td>\n";
 			echo "	<td class='description overflow hide-xs'>".escape($row['device_profile_description'])."&nbsp;</td>\n";
-			if (permission_exists('device_profile_edit') && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
+			if (permission_exists('device_profile_edit') && !empty($_SESSION['theme']['list_row_edit_button']['boolean']) && $_SESSION['theme']['list_row_edit_button']['boolean'] == 'true') {
 				echo "	<td class='action-button'>";
 				echo button::create(['type'=>'button','title'=>$text['button-edit'],'icon'=>$_SESSION['theme']['button_icon_edit'],'link'=>$list_row_url]);
 				echo "	</td>\n";