We have come up with the Frequently asked questions for both the TCL-IVR and VXML API's and created the document for the same.
 
The TCL-IVR/VXML FAQ's document could be downloaded from our documentations-
http://developer.cisco.com/web/vgapi/docs
 

You can also view them in the below link
http://developer.cisco.com/web/vgapi/wikidocs