<label for="phone">Enter your phone number:</label>
<input type="tel" id="phone" name="phone" pattern="[0-9]{3}-[0-9]{2}-[0-9]{3}">
<a href="tel:8895959595">call this number 889-5959595</a>
<label for="phone">Enter your phone number:</label>
<input type="tel" id="phone" name="phone"
pattern="[0-9]{3}-[0-9]{3}-[0-9]{4}"
required>
<small>Format: 123-456-7890</small>