Thanks! This works alot better. After looking at the HTML for the page it is what I expect. However, I still don't receive the phone call. It is as though the data I am trying to submit isn't actually being submitted. Any idea why this is?
Have you tried adding submitcall => "Make it Ring!", as atcroft suggested?
If that doesn't work either, I'd submit the form from a browser, while logging the headers that are being exchanged — using Firefox's LiveHTTP Headers add-on, or some such, in order to see if there's something else (session cookie?) that you need to mimic...