Remove all html from widget?

Hi, I have a widget called “phone” and in it I have a phone number (doh). But when I output it on my template I get html that I don’t want like <li><div> etc.

If I have:

<p><?php dynamic_sidebar( 'phone' ); ?></p>

I want it to output <p>0123 456 789</p> for example.

How can I do this?