What if the system doesn't understand a question?
Then it hands over to a person. That's not a failure path but the design: the application handles the predictable questions and passes the rest to someone who does know.
Am I allowed to just deploy this?
There are conditions. Since the AI Act, a caller must be able to tell they're talking to a system rather than a person. I build that in; the background is in the knowledge base.
Where do the calls and the data live?
Storage (transcripts, recordings, documents, appointments) sits on your own server or on infrastructure under your own management, with an agreed retention period and documented access. The processing itself (speech and language model) runs via specialised vendors under a data processing agreement, with training on your data contractually excluded; which vendor that is and in which region they process, I name explicitly per project. If you want everything inside a single environment, that is a custom build, and we discuss what it costs. No voice cloning and no reselling of call data.
Does this replace my staff?
No. It takes away the repeat questions so there's time left for the conversations that need attention. On a busy day that means fewer interruptions, not fewer people.