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Robocall Guide · Answers

How Do I Prove a Robocall: The Records the Company Must Hand Over

The proof that wins a robocall case is mostly not on your phone. It is in the caller’s dialer, its consent database, and its vendor contracts, and the law makes the company hand it over once a case is filed. This page explains what those records are and how an attorney gets them. What you save yourself, the call log and voicemails that start a claim worth $500 to $1,500 per call, is covered on evidence for a robocall lawsuit.

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Short answer

You prove a robocall with the caller’s own records, obtained through discovery: the dialer’s call logs showing every attempt to your number, the call detail records from the carrier, the consent file the company claims to have (or the absence of one), and the contracts with the vendor that placed the calls. Your attorney gets them with document requests, interrogatories, subpoenas, and depositions. The burden of proving consent is on the company, not on you.

The records that prove a robocall

  • Dialer logs: every attempt to your number, with campaign, date, time, and result.
  • Call detail records from carriers, subpoenaed to confirm the calls and trace spoofed numbers.
  • The consent file: the company must produce it, and usually cannot.
  • Vendor contracts that tie the dialing company to the business that hired it.

Why the strongest proof is not on your phone

Your call log shows that calls arrived. It does not show what dialed them, whether a recording played on calls you missed, how many other people received the same campaign, or whether the company had anything resembling your consent. All of that is in the caller’s systems. A TCPA case is won by getting those systems to speak, and the rules of civil procedure exist for exactly that purpose.

Discovery: the phase of a lawsuit, after the complaint is filed and answered, in which each side must produce relevant documents and answer questions under oath. Refusing is not an option; a court can order production and sanction a party that withholds.

How a lawyer forces the records out

Four tools do most of the work:

  1. Requests for production. Written demands for specific documents: all dialer records for your number, the consent records for your number, the scripts and recordings used, the vendor agreements, and the company’s do-not-call policy.
  2. Interrogatories. Written questions the company must answer under oath, such as identifying the dialing platform, the vendor, the campaign name, and every number used to call you.
  3. Subpoenas to third parties. Orders to your carrier, the company’s carrier, and the dialing vendor to produce their records. This is how a spoofed caller ID is traced to a real business.
  4. Depositions. Sworn testimony from the company’s witnesses, including a corporate representative who must be prepared to explain how the dialing system works.

Dialer logs and call detail records

Every commercial dialing platform keeps a record of each attempt: the number dialed, the timestamp, the campaign or list it came from, the duration, and a disposition code (answered, no answer, voicemail, “wrong number,” “do not call”). Those logs answer the questions that decide the case: how many calls were placed (the multiplier), whether a recording was used (the voice test), what the system was (the dialer test), and whether the company had already flagged your number before it kept calling (willfulness).

Carrier call detail records corroborate the logs from the outside. They confirm the calls hit your number and can fill in attempts the company’s records omit. In Higgs v. Golden Title Loans (No. 2:20-cv-2559, W.D. Tenn.), the records established 385 calls to a wrong number, and the court applied $1,500 to each on summary judgment, for $577,500, without a trial. Prior results do not guarantee a similar outcome.

The consent file, and what happens when there is none

Consent is an affirmative defense, which means the company has to prove it had your permission. You do not have to prove a negative. In discovery the company is asked to produce the document, form, recording, or database entry that shows you consented to automated calls at your number. Three things happen in practice:

  • The company produces a consent record for someone else, the previous holder of your number or a person with a similar name. That establishes a wrong-number case.
  • The company produces a form with fine-print marketing language, and the fight is over whether it meets the written-consent standard.
  • The company produces nothing, because it bought the list. That is the most common outcome, and it ends the consent defense.

Subpoenas to carriers and the vendor chain

Robocall campaigns are layered: a business hires a marketing agency, which hires a call center, which uses a dialing platform, which buys phone service from a wholesale carrier. A subpoena to the carrier that delivered the call identifies the customer that originated it; a subpoena to that customer identifies the next link. The law holds the business at the top of the chain liable for calls placed on its behalf, so the chain is followed to the company with the money. This is why an unidentifiable spoofed number does not end a case: the number is a starting point for a subpoena, not a dead end.

The “how did you dial” question

Because the dialer test now turns on how the equipment stores or produces numbers, the company’s platform documentation matters. Discovery reaches the vendor’s technical specifications, the configuration used for the campaign, and a corporate witness who must testify about it. Where the recording test applies, this question is often unnecessary: a saved voicemail with a recorded message proves the voice test on its own.

What you need before any of that starts

Discovery begins after a case is filed, and filing begins with what you have: the call log, any voicemails, screenshots of texts, and notes on whether you ever did business with the caller or told it to stop. That material is the subject of evidence for a robocall lawsuit. It does not need to be complete. It needs to be enough to identify a pattern and, ideally, a company. A free review with Max Morgan, Esq. (PA Bar #316096, The Weitz Firm, LLC) can tell you whether it is. No fee unless you recover.

Related: Evidence for a robocall lawsuit · Can I sue a number I can’t identify? · How to find out who is robocalling you · What happens after you file a robocall claim


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Discovery in a robocall case: FAQs

What are dialer logs and why do they matter in a robocall case?

Dialer logs are the records a calling platform keeps of every attempt: number, timestamp, campaign, duration, and result code. They establish how many calls were placed, whether a recording was used, what system placed them, and whether the company had flagged your number before it kept calling. They are the core evidence in most TCPA cases.

Can my lawyer subpoena my carrier’s records of the calls?

Yes. A subpoena to your carrier produces call detail records for your number, which confirm the calls and can restore attempts you deleted or never saw. Subpoenas to the caller’s carrier and dialing vendor trace a spoofed number back to the business that originated the campaign.

Who has to prove consent, me or the company?

The company. Consent is an affirmative defense under the TCPA, so the caller must produce the record showing you agreed to automated calls at your number. If it cannot, the defense fails. You are not required to prove that you never consented.

What if the company says it has no records of calling me?

Then the records come from elsewhere: your carrier’s call detail records, the dialing vendor’s logs obtained by subpoena, and the wholesale carrier that delivered the calls. A company that claims to have no records for a number its own campaign dialed also faces questions about record retention, which courts take seriously.

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Reviewed by Max Morgan, Esq.

Pennsylvania Attorney ID #316096 · Active, admitted 2013 · The Weitz Firm, LLC · Represents consumers nationwide under the TCPA.
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