They can change language mid-sentence
A caller who starts in one language and slips into another is followed, without a menu, a transfer or a second explanation of why they rang.
They can interrupt
Cut in and the agent stops talking, listens, and picks up from what was just said — the way a person on the desk would.
They get it in writing
References, appointment times and amounts are read back the way people say them, then confirmed by text so nothing rests on what was heard.
They are told when a person is needed
When the request is past what you let the agent decide, it says so and transfers, rather than talking around it until the caller gives up.