Auto Dialer vs Power Dialer: What’s the Difference?

Auto dialer vs power dialer is a category against one of its members. An auto dialer is any software that dials numbers automatically; a power dialer is the type that calls one number per rep, only when that rep is ready. Predictive and parallel auto dialers ring several numbers per rep, and robocall systems play recordings with no rep at all. The type you pick sets your speed, cost and compliance work.

What is the difference between an auto dialer and a power dialer?

The difference is how many calls the software places for each rep and who the person hears when they answer. Vendors use “auto dialer” loosely, so it helps to name the members of the family:

When someone asks whether they need an auto dialer, the real question is which of these types of dialers they need. A preview dialer sits at the slow end: the rep reads the record and clicks to call.

How does a power dialer work?

A power dialer moves through a list one contact at a time. The rep sees the contact’s record and script, the dialer places the call, the rep talks, logs an outcome and the next call starts, usually after a short countdown. If nobody answers, the rep hears the rings and moves on. The rep’s own pace sets the dialer’s pace, and nobody who answers ever waits for an agent. Read what a power dialer is for the full loop.

Here is a sample hour in Rapidialer. A rep picks a list, loads the first contact and presses Start. The Dialer calls after a five-second countdown the rep can cancel, skip or cut short with Dial now. The call goes to voicemail, the rep presses the number key for the Voicemail outcome and Enter, and the countdown starts on the next contact. When the list has calling hours switched on, contacts outside them wait until the window opens. Numbers on the organization’s Do Not Call list are blocked from being called. With retry rules on, a Voicemail outcome queues the contact again after the delay the list sets.

Where are multi-line auto dialers faster?

Multi-line auto dialers are faster on large cold lists where few people answer. On a list where one dial in ten or twenty reaches a person, a single-line rep spends most of the hour listening to rings and voicemail greetings. Predictive and parallel dialers cut that waiting by dialing ahead: they ring several numbers and connect the rep only to answers.

That speed has costs:

• Dropped answers. When more people answer than there are free reps, someone hears silence or a hang-up. US telemarketing rules call that an abandoned call and cap it at 3% of answered calls per campaign over 30 days (16 CFR 310.4).
• A cold start. The rep usually sees who answered only after the call connects, and the person often hears a pause first, which many people associate with robocalls.
• Faster list burn and number wear. More dials per hour means more unanswered and very short calls from your numbers, which is the pattern carrier analytics label as spam.

How the line count changes those numbers is worked through in single-line vs multi-line dialers. The comparisons in power dialer vs predictive dialer and parallel dialer vs power dialer go deeper on each mode.

Is a power dialer an autodialer in the law?

Under federal law, usually not. The Telephone Consumer Protection Act regulates calls made with an “automatic telephone dialing system”. In Facebook v. Duguid (2021), the Supreme Court held that equipment qualifies only if it can store or produce telephone numbers using a random or sequential number generator (the opinion on Cornell LII). Dialers that call numbers from lists you provide generally fall outside that narrow definition.

That does not make dialing rule-free. Artificial and prerecorded voices need consent, abandoned calls are capped, and do-not-call and calling-hour rules apply to telemarketing calls whatever dialer you use (47 CFR 64.1200). Some states define automated dialing more broadly. Whether a power dialer counts as an autodialer under a particular state’s law is a question for a lawyer who knows the states you call. This is a summary, not legal advice.

What do auto dialers and power dialers cost?

Single-line power dialers usually cost less per user than multi-line auto dialers, because vendors charge for each extra line. Mojo Dialer lists $89 per license a month for its Single Line Dialer and $139 for its Triple Line Dialer, plus $10 per user for Agent Access (Mojo Dialer). Close puts its power dialer on the Growth plan at $99 per user a month billed annually and its predictive dialer on Scale at $139 (Close). The models behind those prices, from bundled minutes to bring-your-own-Twilio, are compared in power dialer pricing.

Which one should you use?

Choose a power dialer if you are a small or mid-sized team, your reps need context before they speak, your lists are warm or high-value, or you call consumers or work in a regulated industry. It is also the simplest to run: there is no pacing to tune and no abandonment rate to monitor.

Choose a predictive or parallel dialer if you work very large cold lists with low answer rates, have many agents online at once, and have someone whose job includes watching abandonment rates and number health.

Use prerecorded or IVR calls only for messages people have agreed to receive, such as appointment reminders, and with the consent the rules require.

Where Rapidialer fits

Rapidialer is an auto dialer in the everyday sense and a power dialer in the precise one. Its Power Dial places one call per rep, from the rep’s browser, after the rep logs an outcome for the last call. It has no predictive or parallel mode and plays no recorded messages: when answering-machine detection hears a greeting, the rep decides whether to leave a live message or skip to the next contact. If you are looking for an auto dialer for Twilio, Rapidialer runs on your own Twilio account at $5 per seat a month or $49 per seat a year, with Twilio billing calls separately.