Speech and AJAX

There has been a lot of talk in the web community concerning AJAX of late. AJAX stands for Asynchronous JavaScript and XML (http://en.wikipedia.org/wiki/AJAX). Is such a thing possible in VXML? Well I just read a very interesting piece for voicexmlreview.org (Aug2005_first_words). Rob Marchand’s describes the VXML 2.1 tag, which enables one to make voice applications feel more responsive by exchanging small amounts of data with the server behind the scenes, so that the entire VXML page does not have to be reloaded each time the recipient interacts.