I'd love to know more about these operations, thanks for mentioning this.
I'm just speculating here, but I suspect it means that the employee needs less training. All he needs is a quick flow-chart to route the calls. No training for how to talk to customers, no liability regarding things he might say, etc.
He was glad when he found another job.
Is this practice widespread at all? I've worked at several contact center software companies with many customers and never once heard of this. It's always been automated IVR software controlling this. This sounds to my ears like maybe an outlier of a particularly awful contact center? I'd certainly pause before claiming this is how it works for "many of these systems".
Edit: ahh I can no longer edit it :|
It seems very strange to have a human who can listen but can't speak. I guess these companies think that by removing speech as a possibility, they're able to pay the employee less or something?
The guy you were talking to eventually just routed you to someone with the same job but who has a mic, because you weren't giving him anything to go on and all he'd have been able to do is push the button again to ask you the exact same question (and having a person do it who can at least vary the inflection of the question is less infuriating than seemingly being stuck in a chatbot's infinite loop).
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Source: have a friend who used to have this job. He has thankfully moved on to something less soul sucking than being a human literally pretending to be a robot.