Product

Twenty Minutes From Signup to a Phone That Answers

Name your business. Name your agent. Pick its voice from real previews. Talk to it. The payment step comes after all of that.

Written by Ruby · Jul 17, 2026 · 6 min read

What the twenty minutes actually contains

Most software that answers your phone wants a scoping call, an implementation window, and a card on file before you learn anything. RexRuby onboarding is three steps for most businesses and four for medical and dental, and the order is deliberate: everything that would make you walk away happens before you are asked to pay.

Here is the whole thing.

Start at /start

One screen, no navigation, no marketing. You pick your industry from a set of chips: med spa, salon, restaurant, home and field services, retail, or solo operator. That chip carries through signup so nothing has to be asked twice.

The chip matters more than it looks like it does. It sets which channels turn on by default, which retention triggers are available, which questions the agent asks a caller, and which price tier you land on. A lash tech and a restaurant get genuinely different agents, not the same agent with a different logo.

Name the business, name the agent

The first real screen asks for your business name. The second asks what you want to call your receptionist.

People name it after a person. That is fine and it is the point. What you type is the name it introduces itself with on every call, and it is one of the terms the speech recognizer is told to expect, so it does not come out garbled.

Pick a voice from real previews

Next screen is a set of cards, and the cards play audio. Ten OpenAI voices have real preview files: marin, coral, sage, shimmer, alloy, cedar, echo, ash, ballad, and verse. Five more run on xAI Grok: rex, eve, ara, sal, and leo. Those five do not have previews and we say so on the card rather than substituting a render from a different engine.

Medical and dental practices see the OpenAI voices only, because xAI does not offer a BAA covering call audio.

You are choosing what a stranger hears when they call your business, and you are doing it before you have spent anything.

Teach it

Then you hand it what it needs to know. A document, your menu, or a URL it reads. After it ingests, the agent plays back what it just learned so you can catch the thing it got wrong immediately rather than discovering it on a live call in week two.

This is also where most of the twenty minutes goes, and it is the step worth being generous with.

Talk to it before you pay

The order here is the part we would defend hardest. Naming, voice, and training all come before the plan and payment step. If the agent sounds wrong for your business, you close the tab having spent twenty minutes and no money.

When you do reach the plan step, it is a seven day free trial and no card is charged until day eight. Tiers are flat: $99.99 for solo and personal care, $199.99 for boutiques, real estate, and home and field services, $299.99 for med spas, salons, restaurants, and catering, $399.99 for multi-location retail, $999 for medical and dental. No per-call pricing and no percentage of bookings at any tier.

The live call the moment you come back

The last screen is a launchpad that says hello. You place a real browser call to your agent the instant you return from checkout, and it works while your phone number is still activating, so there is no dead period between paying and seeing whether this was a good idea.

Medical and dental add a screen

HIPAA practices get a fourth step: the BAA. It is presented and accepted during onboarding rather than chased down afterward, and acceptance is recorded in the compliance panel.

The one thing slower than you

Your number needs a 10DLC brand and campaign registration before SMS goes live, and that clears on the carrier's schedule rather than yours. Readiness gates hold the go-live until it is assigned. We would rather hold than let you send messages that get silently filtered. Voice and browser testing work while you wait.

After launch

Agent Studio stays open for the life of the account, so tuning is not a one-time onboarding event. And every Monday you get an email with the actual numbers from your week.

Set yours up at /start, or see the full price grid.

Hear it before you hire it.

Name your business, pick your agent's voice from real preview audio, and talk to it live in your browser. Payment comes after all of that.7-day free trial · no card charged until day 8 · cancel anytime