Hi Sergio,
This is a custom HTML module so before editing this module, you can go to Global configuration in backend and set the Default editor
to None
first. Then check this sample code on our demo site and replace with your own info:
<div class="head-phone">
<a href="tel:#" title="call">
<span class="number-info">
<img src="images/joomlart/icon/icon-1.png" alt=""/>
<span class="phone-desc">
<span class="label">Phone:</span>
<span class="number text-primary font-heading-family">156-677-124-2887</span>
</span>
</span>
</a>
</div>