Sending SMS and buying phone numbers in certain countries comes with regulatory requirements. dialnote handles most of this for you, but there are a few steps you'll need to complete depending on your use case.

This section covers the three main compliance areas: A2P 10DLC registration for US messaging, regulatory bundles for international numbers, and recording consent settings.

A2P 10DLC Registration#

A2P (Application-to-Person) 10DLC is a carrier-mandated system for business SMS in the United States. It requires two things: a brand registration (your business identity) and at least one campaign registration (your messaging use case).

Brand registration verifies your business with carriers. You'll provide your business name, EIN (tax ID), website, and privacy policy URL. dialnote submits this to carriers through a 3-step wizard in Settings → Compliance. Approval typically takes 1–5 business days.

Campaign registration tells carriers what you're texting about. You'll pick a use case (customer care, account notifications, marketing, etc.), provide 2–5 sample messages, and describe how recipients opt in. Campaign approval takes 7–21 days.

Once both are approved, your US numbers can send SMS. Until then, messages won't go through.

There are 11 supported use cases for campaigns:

• Customer care and account notifications
• Delivery notifications and fraud alerts
• Marketing and mixed messaging
• Two-factor authentication and security alerts
• Public service announcements
• Higher education and polling/voting

Regulatory Bundles#

Some countries require identity verification before you can buy local or mobile phone numbers. dialnote manages this through regulatory bundles — packages of identity documents and address verification submitted to your carrier.

You can create and manage bundles in Settings → Regulatory Bundles. Each bundle includes:

• End user type — individual or business
• Identity details — name, date of birth (individuals) or business name and registration number (businesses)
• Address verification — street address, city, region, and postal code
• Supporting documents — government ID, business registration certificate, or proof of address

After you submit a bundle, it goes through review. Possible statuses are: Draft, Pending Review, In Review, Approved, Rejected, or Provisionally Approved. Once approved, you can use it to buy numbers in that country.

Recording Consent#

Many regions legally require that all parties on a call know when they're being recorded. dialnote gives you per-number controls for this in Settings → Phone Number → Call Features.

You've got three notification options:

• Voice-based — a spoken message tells callers they're being recorded
• Audio tone — a beep plays at the start of the recording
• None — no notification (only use this where single-party consent applies)

You can set different notification types for inbound and outbound calls. It's your responsibility to check the recording consent laws in your jurisdiction.

SMS Opt-Out Compliance#

dialnote automatically handles TCPA-compliant keyword responses for SMS. When someone texts a recognized keyword, the system responds with the right compliance message:

• STOP, CANCEL, END, QUIT, UNSUBSCRIBE — opts the person out and confirms they won't receive more messages
• START, UNSTOP, SUBSCRIBE, YES — opts them back in
• HELP, INFO — sends instructions on how to opt out or get support

This happens automatically — you don't need to configure anything. The keyword detection is case-insensitive and works on exact matches only.