html link a phone number code example
Example 1: href phone
<a href="tel:+5511981724236">98172-4236</a>
Example 2: phone number button on website
<a href="tel:5554280940">Call us at 555-428-0940</a>
<a href="tel:+5511981724236">98172-4236</a>
<a href="tel:5554280940">Call us at 555-428-0940</a>