Voice Call Compliance in the United States

Key Rules for Voice Calls in the United States

The TCPA restricts autodialed and prerecorded calls, especially marketing calls to mobile numbers, which typically need prior express written consent. The National Do Not Call Registry, state laws and STIR/SHAKEN caller-ID rules also apply.

Automated and prerecorded calls are tightly regulated in the US (TCPA and the National Do Not Call Registry) and Canada (CRTC Unsolicited Telecommunications Rules), and other countries in the region have their own registers and rules.

Practical Checklist

• Check whether the call is promotional or a service call, as the rules differ.
• Use permitted calling numbers and caller ID, and never hide or spoof the calling number.
• Screen numbers against any national do-not-call register before promotional campaigns.
• Call only within permitted hours in the recipient's time zone and keep recorded messages short.
• Offer an easy way to stop further calls and record call consent where required.

Contact data

Format numbers in international E.164 format with the +1 country code, remove duplicates and invalid numbers, and keep consent records linked to each number.

Advertising Alongside Messaging

Advertising must follow FTC rules on truthful advertising and endorsements, including clear disclosure of influencer and sponsored content.

This guide is general information, not legal advice, and reflects our understanding as of October 2026. Rules change, so we check current requirements for the United States before every launch.