I would feel deceived if I were a customer of any company or office that uses this. If I take the trouble to call by phone, it's because I want to speak with a person. If I wanted to talk to a machine, I would send an email, talk to a chatbot, or even try to communicate with the company through social media. Calling by phone implies that I am investing time and effort, and I expect the same from the other side.
Totally understandable that most people would want to chat with a human agent (I sometimes share the same feeling). However, I do think that a major reason for that is voice bots were bad before and could not understand and get things done, and felt like waste of time. With advancements in voice AI and LLM, I'm confident that there would be more use cases where talking to a voice bot is not a bad experience.