HTML Anchors and Hyperlinks Link that dials a number
Example
If the value of the href-attribute begins with tel:, your device will dial the number when you click it. This works on mobile devices or on computers/tablets running software – like Skype or FaceTime – that can make phone calls.
<a href="tel:11234567890">Call us</a>
Most devices and programs will prompt the user in some way to confirm the number they are about to dial.
