Call center workers are going to be hit very hard by AI. Especially if the company can convert a lot of requests to text chat. GPT-4 and even GPT-3.5 can handle almost anything routine related to servicing many types of accounts, especially now with the new function calling.

Also Whisper and especially Eleven Labs can be very good at realistic speech/understanding. Although maybe a bit slow still if waiting for GPT-4.

And I bet Falcon-40b can be tuned to handle a ton of call center (or chat-based customer service) requests.