I am not talking about just an agent and call center env. There are so many cool apps that can be developed with CCXML. For a conference app which conferences 10 people, calls them inidvidually at a certain time and then asks them if they want to join, if not asks them if they want to be called after 5 mins, 10 mins etc and then manages the entire logic of when to call them, when it detects a answering machine etc.
You can build lot of intelligence here .......
I do not think Cisco offers anything like that now.
I have not seen this support in Cisco either, although I was looking at the Voxeo website about it. It would take a significant development effort to build the SIP engine on top of the CCXML renderer, as well as interfacing with a SIP conference bridge that exposes that API. There are lot of pieces here that would need to be weighed with the market opportunity. I agree it is very cool feature, independent from call center and UCCE. If you have any more call flow ideas, feel free to unicast me and we can discuss. Thanks.