User Input

You can use two types of user input in Cisco VVB: voice and DTMF.

Cisco VVB accepts both types of input and processes them either through an external media server or through Cisco VVB, depending on the type of input and grammar used to collect the input. For user input recognition based on DTMF, Cisco VVB is capable of recognizing that input without the help of any external media recognition devices. Recognition of user input such as ASR or TTS involves an external media server working with Cisco VVB The grammar formats required to process ASR and TTS-based input are dependent on the support provided by the media server vendor. All external media servers are required to support at least the W3C XML grammar format.