What can an AI do on a sales call?
Two different jobs. An AI can assist a person who is on the call (transcribing, prompting, writing notes), or it can be the one talking (an AI voice agent that places or takes calls, or an agent that joins a video meeting). The first barely changes the legal picture; the second, on US phone lines, falls under robocall rules. The split:
| Type | Who speaks to the buyer | What the AI does | Main US rule to check |
|---|---|---|---|
| Live call assistant | You | Live transcript, prompts, summary and action items after | Call recording consent (federal and state) |
| Outbound AI voice agent | The AI, on the phone | Dials, talks, qualifies, books or transfers | TCPA: AI voices count as artificial, so consent is needed; FTC Telemarketing Sales Rule |
| Inbound AI voice agent | The AI, on the phone | Answers calls the buyer makes, qualifies, books | Recording consent; the TCPA rules above are written for calls you initiate |
| AI agent in a video meeting | The AI, on Zoom, Meet or Teams | Runs a scheduled call from a brief, then reports | Recording consent; telling people what it is |
This is general information on US rules as of 5 November 2026, not legal advice. If you plan outbound AI calls, have a lawyer read your consent wording first.
What does live AI call assistance actually do?
It listens and writes, while you do the talking. The three features to look for: a live transcript, prompts during the call (a question you haven't asked, a competitor name just mentioned), and notes after. Zoom's own assistant is a typical example: its meeting summary article describes a host-started summary with an optional transcript, emailed to the people the host chooses after the call.
The buyer's side of it is a notice. Zoom shows attendees an illuminated AI Sparkle icon in the top-right corner when the summary is on, according to its transparency and notice page. Third-party tools that join as a bot show up as a participant. Either way, the legal question is recording consent:
- Federal law, 18 U.S.C. 2511(2)(d), allows interception where the person is a party to the communication or one party has given prior consent.
- Washington's RCW 9.73.030 needs the consent of all participants, but treats consent as obtained when one party announces the recording in a reasonably effective manner and the announcement is recorded too.
- Florida's section 934.03 makes interception lawful when all parties have given prior consent.
So on a call with a buyer in Washington or Florida, say it out loud at the start. The practical value is in what you do with the notes: our post on the first 24 hours after a sales call turns them into a follow-up.
Can an AI voice agent make sales calls for you?
Technically yes; legally, on US phone lines, only with consent. In a declaratory ruling adopted on 2 February 2024 (FCC 24-17, released 8 February 2024), the Federal Communications Commission confirmed that the TCPA's restrictions on an artificial or prerecorded voice cover current AI technologies that generate human voices. Its reasoning: such voice messages are artificial because a person is not speaking them. The ruling says callers must get the called party's prior express consent, absent an emergency purpose or exemption, and that the TCPA allows no carve-out for technologies that claim to be the equivalent of a live agent.
For sales calls the bar is higher. The FCC's rule, 47 CFR 64.1200, requires prior express written consent for telemarketing with an artificial or prerecorded voice to mobile numbers (paragraph (a)(2)) and to residential lines (paragraph (a)(3)). Written consent means a signed agreement, electronic signatures included, that names the number and clearly authorises the seller to make such calls, with a clear disclosure that signing isn't a condition of buying. Every artificial-voice message must also:
Say who is calling, at the start
The identity of the business responsible, by its registered name (paragraph (b)(1)).
Give a phone number
During or after the message, a number that isn't the dialler's; for telemarketing to residential subscribers it must take do-not-call requests in business hours (paragraph (b)(2)).
Offer an automated opt-out
A voice or key-press opt-out for telemarketing to residential lines and mobiles (paragraph (b)(3)).
The rule names the business, not the fact that the voice is AI. Note also that eCFR flags an amendment to section 64.1200 published on 26 October 2026, so read the current text before you launch. If a B2B direct dial is a mobile number, paragraph (a)(2) covers it. Our sibling post on cold calling and the US rules covers human-dialled calls.
Does the FTC Telemarketing Sales Rule apply to B2B AI calls?
Mostly not, but the honesty rules do. The rule, 16 CFR Part 310, bans outbound calls that deliver a prerecorded message to sell something unless the seller has the recipient's express written agreement to receive such calls (section 310.4(b)(1)(v)). The text, checked 5 Nov 2026, doesn't mention AI.
Section 310.6(b)(7) exempts calls between a telemarketer and a business to induce the purchase of goods or services by the business. Two exceptions remain: the exemption doesn't cover sections 310.3(a)(2) and (4), the bans on misrepresenting material information and on false or misleading statements, and it doesn't cover calls selling nondurable office or cleaning supplies at retail.
In practice: an AI agent calling businesses must not overstate what you sell, invent a reference customer or misdescribe terms, and the TCPA rules in the section above still apply to the number it dials. The FTC rule doesn't replace them.
How do buyers react when they know it's an AI?
Worse, in the largest field experiment we found. A 2019 Marketing Science field experiment by Xueming Luo, Siliang Tong, Zheng Fang and Zhe Qu randomised more than 6,200 customers to structured outbound sales calls from chatbots or human workers. Undisclosed chatbots were as effective as proficient workers and four times more effective than inexperienced ones at producing purchases. Telling customers before the conversation that it was a chatbot cut purchase rates by more than 79.7%; customers were curt and saw the bot as less knowledgeable and less empathetic. The authors found the effect was reduced by disclosing later and among customers with prior AI experience. The abstract describes sales calls to customers, not business buyers as such; the study is seven years old and predates today's voice models.
A second, weaker data point is about AI that helps a human. Balto, which sells contact-centre AI, published a summary of a scenario study by Nathan Hartmann and Dipayan Biswas of the University of South Florida. Participants imagined a video call with a salesperson at a contact centre; the page's own reference list dates it 17 May 2022, and it gives no sample size.
| Condition (imagined call) | Trustworthy | Ethical |
|---|---|---|
| No mention of AI (control) | 4.68 | 4.76 |
| Told in advance | 4.10 | 4.33 |
| Found out by accident | 3.71 | 3.90 |
| Salesperson said so on purpose | 4.53 | 4.71 |
Being caught was the worst outcome in that study; saying it on purpose came close to the control, though Balto's own takeaway is that scores were highest when AI was never mentioned. For what B2B buyers say about AI and sales reps, including Gartner's survey of 645 B2B buyers, see our post on whether buyers would take a meeting with an AI agent.
Which kind of AI should a small B2B team use on sales calls?
Start with assistance on your own calls; add an AI that talks only where the buyer has chosen the meeting and knows what it is. A decision guide, with our view in the last column:
| Your situation | Use | Why |
|---|---|---|
| You take every call and lose detail | Live assistant or meeting summary | You keep the relationship; only recording consent to handle |
| Too many booked first calls to take yourself | An AI agent that joins the scheduled video call | The buyer booked it, so no cold dialling; disclose what it is |
| You want AI to cold-dial lists | Don't, without signed written consent per number | The FCC treats AI voices as artificial under the TCPA |
| Inbound callers wait or get voicemail | Inbound voice agent | The caller started the call; tell them it's AI and offer a person |
For the second row, Siela's Call Agent joins a Zoom, Google Meet or Microsoft Teams call from a plain-words brief, asks one question at a time, answers only from facts you give it, and afterwards gives a summary, the person's answers in their own words and a suggested next step. If asked whether it is an AI or a bot, it says it is your AI assistant. It does not make phone calls. Write the brief from our discovery call question bank.
This week: list every call type you run, mark which row each falls in, and put the matching disclosure line in your invite template and call opening.
Frequently asked questions
Is it legal to use AI to make sales calls in the US?
An AI can place calls, but the FCC ruled in February 2024 that AI-generated voices are artificial under the TCPA, so calls need the called party's prior express consent, and telemarketing to mobiles or residential lines needs prior express written consent. The calls must also identify the business, and telemarketing calls must offer an automated opt-out. This is general information, not legal advice.
Do I have to tell a prospect that AI is on the call?
The FCC rule we read requires an artificial-voice call to name the business, not to say the voice is AI. Recording laws are separate: Washington and Florida require all parties' consent to record, so tell everyone if a note taker is running. Research also suggests being found out later hurts trust more than saying it up front.
Can AI do cold calls for a B2B company?
It can dial, but cold-dialling with an AI voice to mobile numbers for sales needs prior express written consent under the FCC's rules, which a cold list doesn't have. The FTC rule exempts most business-to-business calls but still bans misrepresentation and false or misleading statements. If a person dials and does the talking, with AI only taking notes, the call isn't using an artificial voice, though recording-consent rules still apply.
What is an AI sales call assistant?
A tool that listens while a person sells: it writes a live transcript, may show prompts during the call and produces notes or a summary afterwards. The person still does the talking. Zoom's built-in meeting summary is one example. The main rule to handle is recording consent, which some US states require from every participant.
Do buyers hang up on AI callers?
In a 2019 field experiment with more than 6,200 customers, disclosing a sales chatbot before the call cut purchases by more than 79.7%, and customers were curt with the disclosed bot. The penalty was smaller when disclosure came later or customers had used AI before. The study predates current voice models, and its abstract doesn't describe business buyers.
Sources
- FCC Declaratory Ruling FCC 24-17 (AI voices under the TCPA) (adopted 2 Feb 2024, released 8 Feb 2024; checked 5 Nov 2026)
- eCFR: 47 CFR 64.1200 Delivery restrictions (checked 5 Nov 2026)
- eCFR: 16 CFR Part 310 Telemarketing Sales Rule (checked 5 Nov 2026)
- 18 U.S.C. 2511 (Cornell LII) (checked 5 Nov 2026)
- Washington RCW 9.73.030 (checked 5 Nov 2026)
- Florida Statutes 934.03 (checked 5 Nov 2026)
- Luo, Tong, Fang and Qu, Machines vs. Humans, Marketing Science 38(6) (IDEAS/RePEc abstract) (November 2019; checked 5 Nov 2026)
- Balto: What Do Consumers Think About AI? (vendor summary of USF study) (17 May 2022 (page's own citation); checked 5 Nov 2026)
- Zoom: User Transparency and Notice (checked 5 Nov 2026)
- Zoom Support: Using meeting summary with AI (checked 5 Nov 2026)