Dialog Designer Elements use built-in grammars exclusively, allowing for maximum flexibility in the choice of a speech recognition engine for deployment with Avaya Voice Portal or Avaya Interactive Response.

Developers can modify and tailor the Dialog Designer Elements with customized grammars supported by their desired recognition engine. As an example of this work, the Credit Card Dialog Designer Element has been also built to take advantage of the Nuance credit card grammar in those cases where a developer is using a speech platform configured with Nuance software.