How do I make the button open the phone app?(QAB)

These steps will show you how to have the button in your bar open a customer's phone app and predial your number.

In the link URL field, enter the code:

tel:+

Like so:

Next, enter your phone number beginning with the country code. You can add dashes for readability:

tel:+1-555-555-5555

Like so:

Now Save the bar. Test the site with your mobile phone to ensure the button works.