> ## Documentation Index
> Fetch the complete documentation index at: https://support.vocal.solutions/llms.txt
> Use this file to discover all available pages before exploring further.

# SMS registration (US texting)

> US carriers require business texting registration (A2P 10DLC). Here's what it is, what it costs, and how to set it up in Vocal.

To text from a US business number, carriers require your business to be registered — a program called **A2P 10DLC**. It's not a Vocal rule; it applies to every business phone provider. Registered traffic gets delivered reliably; unregistered traffic gets filtered as suspected spam.

## Set it up

1. Open **Settings → Compliance**.
2. Fill in your business details — legal name, EIN or business registration, address, website, and a short description of what you text customers (appointment confirmations, follow-ups, replies to inquiries).
3. Submit. We prepare and file the registration with the carriers and review it before it goes out, which avoids the most common rejection reasons.

There's a **one-time \$99 registration fee** that covers the carriers' brand and campaign registration costs plus our review.

## How long it takes

Carrier approval typically takes anywhere from a few business days to a couple of weeks — it's their queue, not ours. We'll let you know as soon as you're approved. Calling is unaffected the whole time; expect US texting to be unreliable until approval, because carriers filter unregistered senders.

## The consent rules that keep you deliverable

Carriers care most about **opt-in** — that people agreed to hear from you by text:

* Only text people who gave you their number and agreed to be contacted.
* Vocal's built-in forms include carrier-compliant consent language automatically (unchecked-by-default checkbox, message rates disclosure, privacy policy link) — use them for lead capture and you're covered.
* **STOP always works.** When someone replies STOP, they're unsubscribed per carrier rules; HELP returns assistance info. Don't text someone who opted out.

<Warning>
  Buying contact lists and cold-texting them will get your registration flagged and your delivery rates destroyed — and it's illegal in most cases. Text people who asked to hear from you.
</Warning>