That... doesn't answer my question at all. Why is the AI specifically required? How is it an improvement over making the job more attractive to humans and getting more of them to do the job instead?
They do want to hire more humans, there are job openings they've posted that are not being fulfilled. Since they're not being fulfilled and they don't have the money to increase their salaries to draw in more, they're having to look for ways to make the resources they do have stretch farther. Hence, AI screening to shunt the non-emergency calls away from their existing human emergency dispatchers.
Unlikely. AI is cheaper than humans, that's the whole point. And you have no idea how well it'll be able to do the job. Neither do they, which is why they're planning a test first.
I absolutely do have an idea how well it'll be able to do the job, based on AI's past performances in basically every other area, knowing its strong and weak points and knowing the job very well myself. Obviously I don't know for sure, but I'm not hopeful!