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Phone System · 1 min read

Opt-In Methods and Their Compliance Requirements

Every SMS program must be backed by verifiable consent. These are the accepted opt-in methods and what each needs for A2P registration.

Website form

  • A standalone consent checkbox, unchecked by default and optional.
  • Clear consent language, for example: "Check this box to receive promotional text messages from [Company Name]."
  • Frequency, "Msg & data rates may apply", HELP and STOP instructions.
  • Links to your Privacy Policy and Terms.
  • The form must be public so reviewers can see it.

Text-to-join (keyword)

  • Advertise the keyword and number, for example "Text JOIN to (555) 555-0100."
  • Show the consent disclosure wherever the keyword is advertised.
  • Send a confirmation reply with business name, frequency, rates, HELP and STOP.

Verbal opt-in

  • Use a script that states the business name, message types, frequency, rates and how to opt out.
  • Record or log the consent with the date and time.
  • Provide the script in your registration.

Paper or in-person forms

  • Include the same consent language and an optional checkbox or signature line.
  • Keep copies, and provide a sample in your registration.

QR codes

  • The QR code should lead to a compliant web form or a pre-filled text-to-join message.

General rules

  • Consent can't be a condition of purchase.
  • Don't buy or share lists.
  • Keep proof of consent for every contact.

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