How to disable link to phone number when on Desktop?

I was just dealing with this issue, looking up solutions, and I found this thread (and a few others). I have to confess that I couldn't get any of them to work properly. I'm sure I was doing something wrong, BUT I did figure out a cheat.

As others have pointed out, changing the CSS to hide the visible link indication (color, text-decoration, cursor) is the first and easiest step. The cheat is to define a title for the tel link.

<p>Just call us at <a class="cssclassname" href="tel:18005555555" 
title="CLICK TO DIAL - Mobile Only">(800) 555-5555</a>.</p>

By doing this, not only is the visible indicator of a link disguised (via CSS - see examples from others), but if someone does hover over the link, the title will pop up and say "CLICK TO DIAL - Mobile Only". That way, not only is there a better user experience, but your client doesn't accuse you of having a broken link!

Could you just have the code in twice? i.e...

<div class="desktoptel">0800 000 000</div>
<div class="mobiletel"><a href="tel:0800-000-000">0800-000-000</div>

Then just 'display:none;' on the relevant class depending on your browser sizes?

For me the easiest, yet simplest method without any new classes / setup is via css:

a{
    color: #3399ff;
}

a[href^="tel"]:link,
a[href^="tel"]:visited, 
a[href^="tel"]:hover {
    text-decoration: none;
    color: #000;

    pointer-events: none;
    cursor: default;
}

/* Adjust px here (1024px for tablets maybe) */
@media only screen and (max-device-width: 480px) { 
    a[href^="tel"]:link,
    a[href^="tel"]:visited,
    a[href^="tel"]:hover {
        text-decoration: underline;
        color: #3399ff;

        pointer-events: auto;
        cursor: pointer;
    }
}

Html just goes like this:

<a href="tel:+123-456-7">(+12)3 456 7</a>

This works for modern browsers & IE 11+. If you need to include 8 < IE < 11 add the following to your javascript, since pointer-events dont work in IE:

var msie = window.navigator.userAgent.indexOf("MSIE ");

if (msie > 0){
    var Elems = [], Tags = document.querySelectorAll("a[href^='tel']");

    //Nodelist to array, so we're able to manipulate the elements
    for (var i = 0; i < Tags.length; i++ ) {
        Elems[ i ] = Tags[ i ];
    }

    for(var i = 0; i < Elems.length; i++){
        Elems[ i ].removeAttribute('href');
    }
}

EDIT: i found another answer on another thread, that may be useful for you - SO - Answer