It's all about the reviews. Without them you have no

idea what you are going to get.

LE, B&S, up sell, limited menu? You're flying blind.

I don't do it anymore, one bad experience, the review was pulled, was enough for me.

She has your home number which she can track back to your name, etc. Unless you have no family and no job concerns, I would pass.

She is not giving you much to work with. Vice cops have you if they get you anywhere near their traps. The hobby has too many legitimate, hot providers offering services, take advantage of that fact and don't endanger your finances and freedom.

don't have. Is it that "low volume" line that's got you hooked? Remember you're taking the word of a perfect stranger. I'd pass!

Without reviews, you really can't know what to expect.  This doesn't sound like a classic set-up (you haven't discussed comp or services, right?), but you can never be sure.  Personally, I would pass.  Also, calling from your home phone?  Not good....

Walk away.

So she's on BP but doesn't want word to get out???

You should always be suspicious.  When I was new, with no referances, I gave my first date my hme number.  I didn't call her on it but I'm sure she looked it up to verify other information I gave her.
She may have a TER name, even if she does not allow reviews.  Does she have any posts?  
I understand about discretion, as a Fav does not have a site & no reviews...  still seeing her 4 years in. That said, it was more risky to see her than a well reviewed provider (reviewed by reviewers with several reviews themselves).

I'd not cross her off the list entirely...  just shuffle her further down the deck.  I'd circle back to revisit this when you have some more perspective.
skb