Hello David,
sorry for longer response, as I was travelling.
SAP CCtr open architecture gives lot of options for developing and integrating partner and 3rd party solutions.
We have already solved the problem with blending campaigns years ago with our own ABAP dialer, which we offer to our customers as addon to SAP CRM. It can work with any ICI based telephony, not limited to SAP CCtr.
I think it is natural that call center solution is integrated with other components for specific "heavy duty" tasks, such as ASR, TTS, WorkForce optimization, BI, CRM functions etc.
I do not think there is any monolitic CC solution, that would encompass all technologies and features. SAP competitors sells them also as different components or in suites, some components maybe even acquired and rebranded.
However, I think that automated IVR calls, or at least solution for blending campaigns, should be part of the basic package - and that was meaning of my previous post 
...
BTW, your solution looks cool....
Regards,
Dawood.