Auto vs power vs predictive dialer: definitions and legal lines

Sales teams use "auto dialer," "power dialing" and "predictive dialer" as if they were the same thing. Vendors blur them further, because "auto dialer" sounds fast and "predictive" sounds smart. Federal and state law does not treat them as one category. Each design carries different TCPA exposure, and a few of the rules apply no matter which button your rep presses.

This post defines each type by what the software does, not by what the marketing page calls it. It then walks through the legal lines that matter and explains which setup fits which kind of team. We make Ready, which includes a manual click-to-call dialer. We cover what it does and does not do near the end, so you can decide whether it fits.

The three dialers, defined by mechanics

The useful question is not the product name. Ask two things: who decides when the next number gets dialed, and how many numbers get dialed at once.

Auto dialer (the umbrella term)

"Auto dialer" is a loose, catch-all phrase for software that dials numbers so a human doesn't have to punch in digits. Depending on who says it, it can mean any of the following:

• A tool that dials a list one number after another.
• A system that plays a prerecorded message (a "robocall" setup).
• The legal term "automatic telephone dialing system" (ATDS) in the TCPA, which is narrower than everyday usage. More on that below.

When a vendor says "auto dialer," ask which of those they mean. The answer changes your compliance obligations.

Power dialing (one line per rep, sequential)

Power dialing software dials the next number on a list automatically as soon as the rep finishes the last call. It dials one number at a time per rep. The rep hears every ring and every voicemail greeting. Nobody answers to dead air, because a human is always on the line before the call connects.

Some tools offer "multi-line" or "triple-line" modes that dial two or three numbers per rep at once. Those modes behave more like predictive dialing than power dialing, because a second answer can arrive while the rep is busy. We cover that tradeoff in multi-line and triple-line dialers. For a fuller breakdown of the single-line version, see our power dialing explainer.

Predictive dialer (many lines, algorithm-paced)

A predictive dialer dials several numbers per available agent. It uses an algorithm that estimates how many calls will be answered and when agents will free up. The goal is to keep agents talking almost all the time. The cost is that sometimes more people answer than there are free agents. Those calls get dropped or held, which the rules call an "abandoned call."

Predictive dialing makes sense for call centers with many agents and large, consented lists. For a two-rep team it mostly creates abandoned calls and compliance work. Our predictive dialer vs auto dialer post goes deeper on the pacing math.

Side by side

What the TCPA actually says about autodialers

The Telephone Consumer Protection Act restricts calls to cell phones made with an "automatic telephone dialing system" or an artificial or prerecorded voice unless you have the required consent. Statutory damages run $500 per violating call or text, and up to $1,500 if the violation is willful. That is why one bad list can turn into a class action.

The ATDS definition after Facebook v. Duguid

For years, courts disagreed about what counted as an ATDS. Some read it broadly enough to cover nearly any software that dialed from a stored list. In 2021, the Supreme Court narrowed it in Facebook v. Duguid. Under that ruling, to be an ATDS the equipment must be able to store or produce numbers using a random or sequential number generator.

Most modern CRM-based dialers call a list of specific people you already have. Under the federal definition, they often fall outside the ATDS definition. That is the part vendors quote. Three things they tend to leave out:

1. Prerecorded and artificial voice rules still apply regardless of how the number was dialed. A voicemail drop or an AI voice is a prerecorded/artificial voice question, not an ATDS question.
2. State "mini-TCPA" laws can define autodialers more broadly than federal law. Florida and Oklahoma passed their own statutes with their own definitions, and Florida amended its law in 2023. A dialer that is safe under federal law can still be in scope under a state statute.
3. Do Not Call and calling-hour rules don't care what dialer you use. A hand-dialed telemarketing call to a number on the National DNC Registry is still a violation without consent or an established business relationship.

None of this is legal advice. If you run outbound at scale, have counsel look at your specific dialer and your specific states.

Consent, by call type

A rough map of the consent tiers, simplified:

• Telemarketing calls to cell phones using an ATDS or prerecorded/artificial voice: prior express written consent.
• Informational calls using those technologies: prior express consent, which is a lower bar.
• Live, manually placed telemarketing calls: no ATDS consent requirement, but DNC rules, calling hours and company-specific opt-outs still apply.

Our prior express written consent vs implied consent post covers the texting side, where the same tiers come up.

The rules that hit predictive dialers specifically

Predictive dialers carry a separate set of FCC telemarketing rules aimed at abandoned calls:

• Abandonment rate at or below 3% of answered calls, measured per calling campaign over a 30-day period.
• A prerecorded message within 2 seconds of the greeting when no agent is available. It must identify the seller and give a phone number for opting out.
• Let it ring at least 15 seconds or four rings before the dialer gives up.
• Keep records of abandonment rates so you can prove compliance.

The 2-second message is itself a prerecorded voice message. That pulls the consent questions above back in. This is the main reason small teams shouldn't treat predictive dialing as a free speed upgrade. You buy throughput, and you also buy a compliance program to run.

Single-line power dialing avoids almost all of this, because the rep is already on the line when anyone answers.

The rules that apply to every dialer

These don't change with the technology:

• Calling hours. Federal rules allow telemarketing calls between 8 AM and 9 PM in the recipient's local time. Several states set narrower windows. See TCPA calling hours by state.
• National and internal DNC lists. Scrub against the National DNC Registry and honor company-specific opt-outs.
• Reassigned numbers. A number that consented two years ago may belong to someone else now.
• Caller ID. You must transmit a number that can be called back.

Scrubbing is the cheapest of these to get right. Ready's standalone TCPA and DNC litigator scrub is $0.005 per contact. You can scrub a list with POST /v1/scrub or one number with GET /v1/scrub/:phone (scrub docs). It checks each number against known TCPA-litigator lists and DNC-complainer lists, then flags matches.

Here is the scale of that cost as an example. Scrubbing a 2,000-contact call list is 2,000 × $0.003. A single willful violation can reach $1,500. A scrub reduces risk. It doesn't make anyone lawsuit-proof, and the sender is still responsible for consent. For the full argument, see TCPA litigator scrubbing explained.

Which type fits your team

One to five reps, warm or inbound leads

Use manual click-to-call, or single-line power dialing software if your reps sit on the phone for hours a day. Your leads asked to hear from you, so connect rate per dial matters more than dials per hour. A rep who reads the lead's form answers before calling will usually outperform a rep racing through 300 numbers.

Five to twenty reps, outbound prospecting on a consented list

Single-line power dialing is usually the sweet spot here. You remove the dead time between calls, and you avoid abandoned calls entirely. Be cautious with multi-line modes: they bring back the abandonment problem without the formal pacing controls a real predictive system has.

Twenty-plus agents, high-volume consented campaigns

This is where a predictive dialer earns its keep. Budget for abandonment tracking, the 2-second message, consent records and someone who owns compliance. If nobody on the team will own the 3% number, you're not ready for predictive.

Where Ready's dialer sits (and where it doesn't)

To be plain about it, the Ready Dialer is a manual click-to-call dialer. It does not do power or predictive dialing. It includes:

• Click-to-call from the dial pad in the Ready dashboard or inside GoHighLevel.
• Consented call recording and transcripts.
• Inbound calls that ring the open pad.
• A Missed call card in the Inbox thread for each missed call.

It does not do queue or auto dialing, voicemail drop, transfer, barge, whisper or manager monitoring. If your team needs sequential list dialing or predictive pacing, a dedicated dialer is the right purchase. We'd rather tell you that now than after you've signed up.

The Ready Dialer fits teams that work warm leads one at a time and want calls and texts in the same inbox. Because no software dials ahead of the rep, none of the abandoned-call rules come up.

Pricing is $0.025 per minute, billed only for answered time. Each started minute counts as a full minute. Ring-outs and busy signals cost nothing, while a call answered by voicemail bills like any connected call.

Worked example (assumptions stated): a rep makes 60 manual calls in a session. We assume:

• 10 calls connect, averaging 3 minutes 20 seconds each, which bills as 4 minutes.
• 5 calls go to voicemail at under a minute each.
• 45 calls ring out.

That works out to $0.11 per live conversation, with no seat fee.

The practical takeaway

Classify any dialer by mechanics:

• Who triggers the dial?
• How many lines per rep?
• Can someone answer to silence?

If the answer to the last question is yes, you're running predictive-style dialing. The 3% abandonment cap and the prerecorded-message rules apply.

Whatever you pick, the steps that carry the most legal weight don't depend on the dialer:

1. Get consent.
2. Respect calling hours by state.
3. Scrub DNC and litigator numbers.
4. Keep records.

If manual click-to-call alongside texting matches how your team works, you can create an account and try it on your own leads. If you need true power or predictive dialing, start with our power dialing explainer and shop on that list.