# Buy call recording data for AI training

URL: https://sellmydatatoai.net/buy-ai-training-data/call-recording-data

Call recording data is recorded phone or video conversations, mostly from contact centers, licensed with transcripts and outcome data to train speech, support and sales models. Mercor's published listing puts call centers at $20,000 to $250,000 for recorded customer conversations from operations with 50 to 5,000 agents. Consent to record and to reuse are the main checks.

## Key takeaways

- AI teams use call recording data for (1) speech recognition on real telephone audio, (2) contact center assistants and agent coaching and (3) sentiment and intent classification.
- Usually priced per hour of audio, or per archive for a contact center.
- Common delivery formats: WAV or FLAC with agent and caller on separate channels, time-aligned transcripts with speaker labels and call metadata such as queue, duration and outcome.
- Check before you license call recording data: (1) US: lawful recording where each party was located, including all-party consent states such as California, (2) US: privacy notice covering reuse beyond quality monitoring and (3) US: BIPA and other biometric laws for voice cloning or speaker identification.
- Every seller we shortlist passes 8 vetting checks before you see a sample.

## Buyer's spec

- Used for: Speech recognition on real telephone audio; Contact center assistants and agent coaching; Sentiment and intent classification; Call summarization and quality scoring models
- Formats: WAV or FLAC with agent and caller on separate channels; Time-aligned transcripts with speaker labels; Call metadata such as queue, duration and outcome; Quality scores and dispositions
- Usually priced: Per hour of audio, or per archive for a contact center
- Check before you sign: US: lawful recording where each party was located, including all-party consent states such as California; US: privacy notice covering reuse beyond quality monitoring; US: BIPA and other biometric laws for voice cloning or speaker identification; Card details removed from audio and transcripts; Outsourcing client contracts permit reuse; Personal data spoken aloud redacted; UK and EU: callers' voices are personal data under UK GDPR or EU GDPR

## What is call recording data?

Call recording data is audio of real conversations between customers and agents, with transcripts and the metadata that says what happened on each call. It comes from contact centers and business process outsourcers, and from sales and support teams that record their calls.

## What do AI teams use call recordings for?

AI teams use call recordings for speech recognition on telephone audio and for models that support or score contact center work.

- Speech recognition trained on narrowband, noisy and accented telephone audio
- Real-time assistants that suggest answers to agents during calls
- Intent and sentiment classification for routing and analytics
- Summarization and quality scoring after each call

The broader [speech and audio data](https://sellmydatatoai.net/buy-ai-training-data/speech-and-audio-data) page covers non-call sources.

Telephone audio differs from studio speech in bandwidth, background noise and overlap between speakers, so speech recognition teams that serve contact centers need it as well as cleaner recordings.

## How much is call recording data worth?

Call recording data is worth $20,000 to $250,000 per contact center on Mercor's published listing, for recorded customer conversations from operations with 50 to 5,000 agents, as compiled by ddiy.co in October 2026.

That listing measures size in agents rather than employees, so the number of agents and the years of retained audio are the first questions to ask a seller. Recordings that carry outcome data, such as whether the issue was resolved or a sale closed, give a model a target to learn from.

## What consent rules apply to call recordings?

Consent rules for call recordings depend on where each party was when the call took place. Federal law at 18 USC 2511(2)(d) permits a recording where one party to the call consents, but California Penal Code section 632 makes it an offense to record a confidential communication without the consent of all parties, with fines of up to $2,500 for a first violation.

Lawful recording for quality purposes does not by itself permit licensing for AI training. Frankfurt Kurnit Klein and Selz notes that companies must comply with the privacy statements in effect when data was collected, and lists call recording consent laws and biometric laws among the rules that can apply. FTC staff warned in February 2024 that retroactive changes to privacy policies to allow AI training may be unfair or deceptive.

Voice adds a biometric layer. Illinois' Biometric Information Privacy Act lists a voiceprint as a biometric identifier, and section 15(c) bars an entity holding one from selling or otherwise profiting from it, so speaker identification and voice cloning uses need separate attention.

If you hold UK or EU recordings, callers' voices are personal data under UK GDPR or EU GDPR, and voice processed to identify a caller is special category biometric data.

> **Card details** PCI DSS states that sensitive authentication data, including card verification codes, must not be stored after authorization even if encrypted. Any call where a customer reads out card details must be cut or redacted before licensing.

## How should call recordings be delivered?

Call recordings should be delivered as lossless audio with agent and caller on separate channels where the system recorded them that way, plus time-aligned transcripts, speaker labels and call metadata. Separate channels make diarization and redaction easier.

Redaction must cover the audio as well as the transcript. Personal data spoken aloud, such as names, addresses and account numbers, should be muted or replaced with a tone in the audio and masked in the text, with the method documented.

Ask for the date range, total hours, number of agents and languages in the [data manifest](https://sellmydatatoai.net/glossary/data-manifest), and check them against a random sample of calls.

## What should you check before buying call recordings?

Before buying call recordings, ask for the recording notice callers heard, the privacy notice in force at the time and, if the seller is an outsourcer, its client contracts. An outsourcer records on behalf of its clients, and the client contract decides who can license the recordings.

Contact centers on the supply side can read about [selling call center data](https://sellmydatatoai.net/sell-your-data/call-centers). Our [due diligence checklist](https://sellmydatatoai.net/guides/ai-training-data-due-diligence-checklist) covers the contract. To source vetted call archives, [book a free consultation](https://sellmydatatoai.net/book-a-consultation?side=buyer).

## Frequently asked questions

### Can a call center sell its call recordings for AI training?

A call center can license its call recordings for AI training if the calls were lawfully recorded, its privacy notices allow the reuse and its client contracts do not prohibit it. Outsourcers usually need their clients' agreement. Mercor publishes payouts of $20,000 to $250,000 for recorded customer conversations.

### Does a quality monitoring notice cover AI training?

A quality monitoring notice does not automatically cover AI training. Frankfurt Kurnit Klein and Selz notes that companies must comply with the privacy statements in effect when data was collected, and FTC staff warned in February 2024 that a surreptitious, retroactive change to a privacy policy to allow AI training may be unfair or deceptive.

### How are payment details handled in call recordings?

Payment details in call recordings must be removed before licensing. PCI DSS states that sensitive authentication data, including card verification codes, must not be stored after authorization even if encrypted. Calls where card details were read out should be cut or redacted in both audio and transcript.

### What metadata should come with call recordings?

Metadata that should come with call recordings includes queue, duration, language, outcome or disposition, quality scores and speaker channel labels. Outcome fields matter most, because they tell a model whether a call succeeded. Ask for separate agent and caller channels where the recording system supports them.

## Sources

- [How to sell company data to AI companies (2026 guide)](https://ddiy.co/sell-company-data-to-ai/), ddiy.co, accessed November 2026
- [California Penal Code section 632](https://law.justia.com/codes/california/code-pen/part-1/title-15/chapter-1-5/section-632), Justia, accessed November 2026
- [18 U.S. Code section 2511: interception and disclosure of wire, oral, or electronic communications prohibited](https://www.law.cornell.edu/uscode/text/18/2511), Legal Information Institute, Cornell Law School, accessed November 2026
- [Selling company data for AI training: what to know before you say yes](https://technologylaw.fkks.com/post/102o455/selling-company-data-for-ai-training-what-to-know-before-you-say-yes), Frankfurt Kurnit Klein and Selz, accessed November 2026
- [AI (and other) Companies: Quietly Changing Your Terms of Service Could Be Unfair or Deceptive](https://www.ftc.gov/policy/advocacy-research/tech-at-ftc/2024/02/ai-other-companies-quietly-changing-your-terms-service-could-be-unfair-or-deceptive), Federal Trade Commission, accessed November 2026
- [Biometric Information Privacy Act, 740 ILCS 14/10 definitions](https://lig.ilga.gov/legislation/ilcs/documents/074000140K10.htm), Illinois General Assembly, accessed November 2026
- [Biometric Information Privacy Act, 740 ILCS 14](https://www.ilga.gov/legislation/ilcs/ilcs3.asp?ActID=3004&ChapterID=57), Illinois General Assembly, accessed November 2026
- [Why is storage of sensitive authentication data after authorization not permitted?](https://www.pcisecuritystandards.org/faq/articles/Frequently_Asked_Question/For-PCI-DSS-why-is-storage-of-sensitive-authentication-data-SAD-after-authorization-not-permitted-even-when-there-are-no-primary-account-numbers-PANs-in-an-environment), PCI Security Standards Council, accessed November 2026
- [UK GDPR Article 4: definitions](https://www.legislation.gov.uk/eur/2016/679/article/4), legislation.gov.uk, accessed November 2026

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