AI Voice Agents and Cold Calling: What's Legal and Where AI Helps

In the US, an AI voice agent can't legally cold call consumers. Since the FCC's February 2024 ruling, an AI-generated voice is an "artificial" voice under the Telephone Consumer Protection Act, so a sales call made with one to a cell phone or a home phone needs the person's prior express written consent first (FCC Declaratory Ruling 24-17). A call to someone who signed up for it isn't a cold call. What's left for AI in cold calling is narrower: some business-to-business calls to office landlines, and helping human callers rather than replacing them.

Out Nurture's AI calling is in beta and not yet available; this guide covers AI voice agents and cold calling in general.

Where an AI voice agent can and can't cold call

Who you're calling	AI voice sales call without consent?	Rule
A consumer's cell phone	No	Needs prior express written consent (47 CFR 64.1200(a)(2))
A consumer's home landline	No	Same consent requirement (64.1200(a)(3))
A business owner's or employee's cell phone	No	The cell phone rule covers any number on a wireless service, business use or not
A business landline	Not barred by the FCC consent rules, but identification rules apply and state laws may not allow it	The federal consent rules for artificial voices name wireless, residential and certain emergency and hospital lines, not ordinary business lines

The last row is smaller than it looks. You often can't tell whether a number is a landline or a cell phone, and many sales contacts give out their mobile number. And state laws go further: Florida bars unsolicited sales calls that use an automated system to select and dial numbers or play a recorded message without prior express written consent (Florida Statutes 501.059(8)).

A person pressing buttons doesn't change the answer

Some systems put a human "in the loop" who picks which AI-generated or recorded lines to play. The FCC addressed this directly: its earlier soundboard ruling found that a live agent choosing prerecorded messages doesn't stop the call from being an artificial-voice call, and the 2024 ruling applies the same reasoning to AI voices. It says the TCPA does not allow "any carve out of technologies that purport to provide the equivalent of a live agent" (FCC 24-17, paragraphs 6 and 8).

What getting it wrong costs

• Private lawsuits: $500 per call, up to $1,500 per call if the violation was willful or knowing (47 U.S.C. 227(b)(3)). Florida's law has the same $500 floor and tripling (501.059(10)).
• Do Not Call violations: the FTC lists civil penalties of up to $53,088 per violation, and each call can count as one (FTC Do Not Call Q&A).
• FCC enforcement: in 2024 the FCC fined the person behind AI-voice deepfake robocalls to New Hampshire voters $6,000,000 for spoofed caller ID (FCC Forfeiture Order 24-104). That case was political, not sales, but it shows the FCC pursues AI-voice calls.

The rules that apply even where AI calling is allowed

• Say who's calling first: every artificial-voice message must open with the business's registered name and give a callback number (47 CFR 64.1200(b)).
• Calling hours: federal rules allow telephone solicitations to residential subscribers only from 8 AM to 9 PM in the called person's time zone (64.1200(c)(1)); Florida's limit for commercial telephone sellers ends at 8 PM, with at most three calls to a person in 24 hours on the same subject (Florida Statutes 501.616).
• Do Not Call: consumer numbers on the national registry are off limits for cold calls. The FTC says most calls to businesses to sell to the business are exempt from its Do Not Call rules (FTC Do Not Call Q&A). Consumers who ask you to stop must go on your internal do-not-call list, and a request to revoke consent must be honored within ten business days at most (64.1200(a)(10) and (d)).
• AI disclosure: Utah requires a business using generative AI with a consumer to say it's AI when asked clearly (Utah SB 226). Maine requires a clear notice whenever a chatbot, voice included, could make a reasonable consumer think it's a person (Maine Public Law 2025, chapter 294). California requires a live announcement before a dialing-announcing device plays a recorded message, including whether the voice is artificial (Public Utilities Code 2874).
• Recording: if your AI records or transcribes calls, note that states such as California, Florida, Illinois and Washington require every party's consent to record (California Penal Code 632.7, Florida Statutes 934.03, Illinois 720 ILCS 5/14-2, Washington RCW 9.73.030).
• Voicemail: an AI voicemail is an artificial-voice message under the same rules, and ringless voicemail dropped into a cell phone's mailbox needs consent too (FCC 22-85).
• "Stop calling me" mid-call: on telemarketing calls the AI must offer a voice or keypress opt-out right after it identifies the business, and using it must add the number to your do-not-call list and end the call (64.1200(b)(3)). Treat the spoken words the same way.

The FCC has also proposed requiring callers to disclose AI-generated calls (FCC 24-84, August 2024). It's a proposal, so build the disclosure in now rather than waiting for a final rule.

Why the business-landline opening rarely works in practice

• You must know each number's line type before the AI dials. Carrier lookups can tell you; Twilio's Lookup API, for example, labels a number as landline, mobile, fixed VoIP or non-fixed VoIP (Twilio Line Type Intelligence). A landline number ported to a cell phone gets you only a 15-day grace period, and only for a voice call not knowingly made to a wireless number and not on a do-not-call list (64.1200(a)(1)(iv)).
• Bought lists don't carry consent. Written consent has to authorize calls from your business specifically, and the FTC says a seller can't place prerecorded-message calls to consumers whose details it got from a third party (FTC Do Not Call Q&A, question 11).
• The disclosure comes first. Federal rules make your business name the first thing an artificial voice says, and Maine requires a clear notice that the caller isn't human. The recipient hears a company name and "AI" before your pitch.

Where AI does help a cold-calling team

Task	Why it's safer
Researching accounts and writing call notes before the dial	No call is made by AI
Scrubbing lists against the registry and your internal do-not-call list	Required anyway; registry data must be no more than 31 days old (64.1200(c)(2))
Live call coaching and summaries for a human rep	A person speaks; recording consent still applies
Calling inbound leads back after they opted in	Written consent turns it into a permitted call; see the consent wording below
Texting leads who opted in	Consent and A2P 10DLC registration apply; see A2P 10DLC registration

Turning cold lists into opted-in leads

To make AI calls legal, get people to ask for them: put this next to an unchecked, optional box on your forms and ad landing pages:

I agree that Acme Solar may call and text me at this number about solar for my home, including automated calls and AI-generated voices. Agreeing is not a condition of any purchase. I can opt out at any time.

Then the AI's job is a fast, polite callback that opens with "This is an AI assistant for Acme Solar, calling about the quote you requested." For response time and follow-up after that call, see speed to lead.

If you use Out Nurture

Out Nurture texts leads today (how the texting works); AI calling is in beta and not available yet.