Who owns the data in a white-label AI system?
Your client owns their customers' data, you own your agency account and demo captures, and Lumina holds it as the operator and never markets to it. Here is the full breakdown, what the model vendors do and do not keep, and what happens to everything if you cancel or a client leaves.

Three different parties own the data in a white-label AI system, and mixing them up is how agency owners end up in a bad meeting. Your client owns their business information and their customers' records. You own your agency account, your demos, and the contact details your demo page captures. Lumina holds all of it as the operator and does nothing else with it. We do not sell it, we do not market to it, and we never contact anyone who opens your demo.
That is the whole answer. The rest of this post is the detail you need when a practice manager asks you the same question across a table and "I'm pretty sure we own it" is not going to do.
What data does one of these systems actually hold?
Ownership is easier to reason about once you have an inventory. A typical buildout ends up holding five kinds of data.
Business configuration your client hands over at intake: hours, services, price bands, logo, brand colors, calendar access, and who the leads go to. That is the list we collect before a build starts, and it is the least sensitive pile here.
Conversation records. What the caller said, what the agent said back, and on voice builds, the audio.
Contact details captured in those conversations. A name, a phone number, sometimes an email, plus what the person wanted and when.
Booking records written out to the client's calendar or CRM.
Demo-side data on your own account: which prospects opened your demo page, how long they talked to the agent, and the email addresses the gate collected.
Two of those five need real care. Conversation records contain other people's words. Demo-side captures are your pipeline, and the reason people ask whether a platform is quietly building a lead list out of them.
Who owns each pile?
The client's customers' data belongs to the client. They collected it. In the eyes of a regulator and of the caller, your client is the business, and you are the vendor sitting behind them.
The business configuration belongs to the client too, including the recordings of their own phone tree and the price bands they gave you. You are holding it to do a job.
Demo-side data belongs to you. From our FAQ, in plain terms: we do not email, call, or market to anyone who opens your demo, the addresses captured by the email gate belong to you, and Lumina Sales is not a lead marketplace. That last line is a commitment about what the company will not become, and it is the one I would want in writing if I were buying this.
The platform account, your subdomain, your branding, and your drafts are yours.
Do the model vendors train on your client's calls?
Not by default, on either of the two providers most of this industry runs on. But "not used for training" and "not stored" are different claims, and blurring them in a sales call is how you get caught out later.
