How do you deal with 'legal requirements' with your clients? Is this a huge friction when it comes to selling Voice Agents?

Hey, so I have been looking into building an AI Receptionist package to sell to restaurants and other appointment-based business.

This agent in practice is quite simple: it just takes calls, answer questions about the menu, business, opening hours, etc, and also has a set of tools to look up availability and set up appointments or reservations on behalf of the business, updating whatever booking system the restaurant uses via an API with the reservation details (I'm still figuring out this part, but I don't think it will be too complicated).

Now, this agent cannot be a widget on a website. It has to sit behind a REAL phone number so it can actually answer phone calls which is what a lot of these businesses still use. There's no way around that, it has to be behind a real phone number people can actually call.

The thing that I overlooked at the beginning is the amount of requirements it takes to have an actual phone number linked to a business. For Spain (which is the country I am planning to target due to the fact that I am a native speaker and it has a massive hospitality industry), for example, you cannot even buy a number in Twilio. And I looked up Telnyx and while it seems like they have Spanish numbers there, you need to provide a lot of sensitive information:

- A copy of your passport or ID
- Tax ID number
- Proof of Address
- Likely the owner of the business would have to go through some ID verification process too.

This feels like a huge bottleneck in the process, for setting up something as simple and basic as a phone number. And I image that if you want to use these phone providers for a business use case, it might look similar in other countries (specially in the EU, where we have this peculiar obsession with privacy).

Now, I would not have any problem with that personally, but I image is quite a point of friction in the conversation where you tell your clients that they have to share all of the above with you in order to set up an AI receptionist for their business.

So my question is, for people who have actually managed to sell Voice Automation Solutions, how do you handle the 'legal' part of the process and how does that conversation look with your clients? I think the product in question could be great and easy to sell as it provides genuine value and saves a lot of time (specially for busy restaurants and businesses which are getting flooded with calls at the worst possible moment), but the legal/compliance aspect is making me rethink the whole thing. Should I just instead focus on other markets where the regulations are a bit softer?

TLDR; Setting up a phone number for your voice agents requires a lot of very personal details from the clients. For those of you that have been in this situation before, how do you approach it? Are your clients okay with handing you a bunch of legal documents and sensitive data?