I want to use DTMF to receive user input from an entity in a voice bot to an IVR.
I want to receive DTMF input for numbers between 1 and 5. If the user enters any other number or letter, I want to hear a voice message saying, “Invalid input. Please enter a number between 1 and 5.” Then, I want to receive input again.
I want to receive input only via DTMF, not voice.
How can I do this?