_remote_ip & wpcf7_before_send_mail

I’m using the following code and everything works well except that values of following variables are not getting saved. I’m sure I’m not using them correctly.
_remote_ip
_url

add_action('wpcf7_before_send_mail', 'save_cf7_db_san');
function save_cf7_db_san($wpcf7)
{
    global $wpdb;
	
    $title = $wpcf7->title();
	
	if(isset($_POST['your-name']))
		$name = $_POST['your-name'];
		
	if(isset($_POST['your-email']))
		$email = $_POST['your-email'];
		
	if(isset($_POST['your-phone']))
		$phone = $_POST['your-phone'];
		
	if(isset($_POST['your-message']))
		$msg = $_POST['your-message'];

	if(isset($_POST['_remote_ip']))
		$ip = $_POST['_remote_ip'];		
		
	if(isset($_POST['_url']))
		$page = $_POST['_url'];		

		
		
	$wpdb->insert( 
				'myforms',
		array(
			'dt'	=> date('Y-m-d'),
			'tm'	=> date('H:i:s'),
			'ip'	=> $ip,
			'title'	=> $title,
			'page'	=> $page,
			'name'	=> $name,
			'email'	=> $email,
			'phone'	=> $phone,
			'msg'	=> $msg
			)
		);
}

Can someone help me with the correct syntax.

Thanks