Why doesn't every channel do this?

http://www.live960.com/live9604.php

Note the numbers on the right hand side, the first one being labelled 'Adult Chat'. I called it and although I didn't get through, I was listening in to Toya's conversation. So presumably had I got through from the adult chat number, I'd be having adult chat with her? The way LA Babes used to do it.

Why is it that The Pad, Babestation etc. don't have an adult number on their sites that takes you through to the babe on screen? Is it not entirely safe from a legal standpoint or what?