Retreaver.js - Set phone number so that the number is static on direct and call pool number all other times

index.html

<!--Retreaver Script-->
<!-- <script src="//dist.routingapi.com/jsapi/v1/retreaver.min.js"></script> -->
<script src="https://d1a32x6bfz4b86.cloudfront.net/jsapi/v1/retreaver.min.js"></script>
<script>
var j = jQuery.noConflict();

j(function() {
	Retreaver.configure({host: 'api.calltrackapi.com', prefix: 'https'});
	// Initialize the Retreaver campaign using the campaign key from your campaign page.
	var phoneNum = new Retreaver.Campaign({ campaign_key: '3a4f5683eddd986e4eb3cf5638ad88b6' });
		// Request a number that matches the tags.
		phoneNum.request_number(function (matching_number) {
				referrer = document.referrer,
				url = "eggdonorandsurrogacy.com",
				urlFinder = referrer.indexOf(url); 

				if ( urlFinder === -1 ) {
					var now = new Date(),
					time = now.getTime();
					time += 3600 * 1000;
					now.setTime(time);
					document.cookie = "indirect_traffic=yes;" + "expires=" + now.toUTCString();
				}

				if( document.cookie.indexOf("indirect_traffic=yes" !== -1) ) {
					j('.phoneNum').html(matching_number.get('formatted_number'));
					window.retreaver_number = matching_number;
					var plainNumber = matching_number.get('plain_number');
					j(".phoneNum").attr("href", "tel:" + plainNumber);
				}
				
				//console.log(document.referrer);
				//console.log(urlFinder);
				//console.log(document.cookie);
		})
});
</script>