[Roberta]

Sure, I didn’t think it can help someone ^_^
I needed to show an icon as label for the phone number. I’m using the “Font Awesome More Icons” plugin to show the icon :)
with this code:

$out .= '<span class="phone-number-block">';

		foreach ( $phoneNumbers as $phone ) {
			$replace = array();

			$out .= "\n" . '<span class="tel"><i class="icon-phone">';

			( empty( $phone->name ) ) ? $replace[] = '' : $replace[] = '</i>';

As you can see it is a very simple edit, but it will be lost at the next update…

Anyway I this can be usefull for someone else ^_^