Are AI Voice Agents for B2B Cold Calling Legal in the UK? (2026)

Author:

Pablo Jiménez de Parga Ramos

Date:

Nov 9, 2026

Treat an AI voice agent as an automated calling system under PECR regulation 19: a marketing call from one needs the business's prior, specific consent to automated calls from you, which rules it out for cold calling (ICO, DMA). throxy cold calls with specialist human SDRs on live conversations, which sit under the live-call rules: screen against the TPS and Corporate TPS, say who is calling and respect objections (throxy, ICO).

This guide is published by throxy as general information and does not give legal advice. Facts come from ico.org.uk, legislation.gov.uk and the Data & Marketing Association, checked on 9 November 2026. The ICO states its PECR guidance is under review after the Data (Use and Access) Act (ICO).

What PECR says about automated calls

Regulation 19 bans direct marketing calls that carry recorded matter through an automated calling system unless the subscriber has told you it consents. An automated calling system is one capable of automatically calling a sequence of numbers and transmitting sounds which are not live speech (regulation 19).

The ICO applies this to B2B calls. To make an automated marketing call to a business you need its consent, and that consent must specifically cover automated calls from you. You must also say who is calling, display your number and give your contact details or a Freephone number (ICO B2B guidance). General consent for marketing, or consent to live calls, is not enough (ICO telephone marketing).

What the ICO has said about AI voices

Through its innovation advice service, the ICO answered whether an AI-produced greeting in a call handler’s voice, played for three to five seconds before a person takes over, falls outside regulation 19. Its answer: the system falls under the regulation 19 definition, and the calls would not comply without specific consent (ICO innovation advice). The ICO describes these answers as informal advice that is not legally binding (ICO).

The Data & Marketing Association wrote on 4 June 2026 that the rules for automated calls should include the use of AI (DMA).

Live calls and AI voice calls compared

Rule	Live call by a person	AI voice agent call
Consent before calling a business	Not needed unless the number is on the TPS or CTPS or the business has objected	Needed, and it must cover automated calls from you
Screen TPS and CTPS	Yes, plus your own do-not-call list	Consent applies in every case
Say who is calling	Yes	Yes
Display your number	Yes	Yes
Contact details	If asked	Always: address or Freephone number

Source: ICO business-to-business marketing guidance (ICO).

A checklist before you use AI on sales calls

Use AI for research, list building and call preparation, and keep cold calls live with a person on the line.
If you run AI voice calls, keep evidence of consent that names your organisation and covers automated calls (ICO).
Say who is calling, display your number and give an address or Freephone number on every automated call (ICO).
Stop the calls as soon as consent is withdrawn (ICO).
Screen live B2B calls against both the TPS and CTPS, because some sole traders and partnerships register with the TPS (ICO).
Apply UK GDPR when you process personal data on a call, for example the name of the person you ring (ICO).

How throxy uses technology on calls

throxy’s specialist SDRs pick up the phone and cold call your buyers in 10+ languages. They run on Maestro, the dialer throxy built to put SDRs on live conversations (throxy). Trained reps research each account and write call tracks around your offer and ICP (cold calling). For the wider UK rules on calls and email, read our ICO-compliant outbound guide (guide).