What is the best way to generalize voice chat functions out of ChatGPT?

I am currently trying to integrate a voice conversation function through ChatGPT for my voice assistant app. However, voice conversation functions are out of ChatGPT’s current capabilities. I am trying to bring ChatGPT to voice assistants like Alexa. I currently am researching the best ways to integrate this into my app. What is the best way to integrate voice chat functions?