What is the rails way equivalent of mailto: and tel:? : <p>My model have contact:string and email:string attributes. In pure html, we can write</p>

<p><code>&lt;a href="mailto:sample@email.com"&gt;email us&lt;/a&gt;</code></p>

<p>and </p>

<pre><code>&lt;a href="tel:123-456"&gt;123-456&lt;/a&gt;
</code></pre>

<p>How do we convert these two into rails code assuming my model name is sample. My guess would be something like</p>

<pre><code>&lt;%= link_to @sample.email, "#" %&gt;

&lt;%= link_to @sample.contact, "#" %&gt;
</code></pre>

<p>What should be in the <code>"#"</code> ?</p>
