blublu on "How to add phone number to header?"

I am using the Webfolio theme on my multisite network and would like to display a different phone number in the theme's header for each new site. I hard coded it into the header of the first site and it works, but I soon realized that I couldn't do it that way for each of the other sites. The theme already has code for phone number, which is input in the theme's options panel and displayed on the Contact Us page. I just need to know how to use that same bit of code for the header, so when I type a phone number for a new site, it shows correctly in the header as well.

This is what I hard coded in header.php (I also added the css):

<div id="Phone">
<h2a><?php echo '000-000-0000' ?></h2a>
</div>

Here is the bit of html code from the Contact Us page:

<div id="contact-data">
<p>
<p>
<span class="contact-data-field">Phone:</span>
<span class="contact-data-info">800-000-0000</span>
</p>
<p>
</div>

This is the code in contact.php:

$options[] = array( "name" => "Contact Phone",
                        "id" => $shortname."_contact_phone",
                        "std" => "+1 212-555-0000",
                        "type" => "text");

Not sure how to bring it all together. Thanks for any help that you can offer.