The first call is already part of the care
In your practice, the person calling has often told their story several times before reaching your line. Asking for it again at reception makes them pay the entry price one more time. Sector research puts it plainly: repeatedly collecting sensitive content is a problem in itself, and generic follow-ups after a refusal or a change do harm.
The other difficulty is the opposite of the first: something still has to be organised. An available practitioner, a time that works, an authorised format, a callback channel that will not ring at the wrong moment in front of the wrong person. And it has to happen while you are in session, door closed.
Your receptionist takes the strict minimum: the service being sought, whether this is a new request or an existing administrative contact, the channel and callback window the person considers safe, and the authorised format. She does no therapy, assesses no risk, and asks nothing about the story. When distress surfaces, she reads the protocol your practice wrote, points to the resource you listed in it, and raises the alert.