Phone tracking using gtag

functions.php

// add tracking for phone call clicks and contact form
function google_phone_clicks_and_contact_form() {  ?>

		<!-- phone call tracking for analytics -->
		<script type="text/javascript">
	    jQuery(document).ready(function() {
		jQuery("a[href^='tel:']").click(function(event) {
			
			if (typeof gtag !== 'undefined') {
				  gtag('event', 'Click', {
    				'event_category': 'Contact',
    				'event_label': 'Phone',
    				'event_callback': function() {
						console.log("information sent successfully");
					}
					 
 				 });
			} // end if variable defined

		}); // end click function
		}); // end document ready
			
			<?php if (is_page(23)) : // if on the contact page ?>
			document.addEventListener( 'wpcf7mailsent', function( event ) {
				console.log("form submitted");
  				 gtag('event', 'Submit', {
    				'event_category': 'Contact',
    				'event_label': 'Contact Form',
    				'event_callback': function() {
						console.log("contact form tracking sent successfully");
					}
					 
 				 });
			}, false );
			<?php endif; ?>
			
		</script>


<?php 
}
// include in footer
add_action('wp_footer', 'google_phone_clicks_and_contact_form');