The answer is with Dynamic Number Insertion (DNI). This allows the user to connect to your business with one click. Unique call tracking phone numbers can also be placed on your website or landing page to help you find out how the visitor arrived to your page.
Your customers will still see your official phone number but, when they click to call, they’re actually clicking on a unique back-end click-to-call number. This unique phone number tracks that the call is coming from a mobile device.
With this method, call analytics track which campaign, keyword, app or search engine led the most consumers to your site. Each one of these tracked calls are placed in a report, and allow you to fine tune your campaign on Google or Bing. Using dynamic number insertion will also improve your SEO efforts.