For some reason, the only option Google gives you to test to see if the “Calls From Website” conversion is working on your website, is to do a search until your ad comes up, find your ad, and then click on it.
That sucks because you have to pay for each test, and a small daily budget means you may have to search several times for your ad to appear. I found some code that you can add to the end of your URL in Google Chrome that will force execute the Google forwarding number script on your site to see if it's installed correctly.
Add #google-wcc-debug at the end of your landing page URL (e.g. www.website.com#google-wcc-debug) you’ll find a small, nice debug window on the bottom left corner. Click "Force" and you can see if everything is working properly.