Quality of the microphone plays an important role in a speech recognition carried out in such setting. Use noise-cancelling microphone increases the success rate.
On Sestek SR’s part, success rate can be enhanced through a simple fine-tune adjustment on VAD and sensitivity settings.

Related Products: Conversational IVR 1 (NLP+SR), Conversational IVR 2 (NLP+SR+Orhestrator)