Unbounce - Adwords Call tracking - Clickable links backup - See full instructions here: http://documentation.unbounce.com/hc/en-us/articles/203509834

ubcalltrackinglinks.html

<script>
  var callback = function(formatted_number, unformatted_number) {
    var numberLinks = document.getElementsByClassName('number_link');
  
    for (var i in numberLinks) { 
      // Change clkn to clkg if you are tracking your links as Unbounce conversion goals
      numberLinks[i].href = "clkn/tel/" + unformatted_number;     
      numberLinks[i].innerHTML = "";
      numberLinks[i].appendChild(document.createTextNode(formatted_number));  
    }
  };
</script>

<script>
  $(function(){
  _googWcmGet(callback, '1-800-123-4567')
  });
</script>