Is there a free dialer for cold calling?
Yes, there is a free dialer for cold calling, but no free option covers the whole job. Google Voice, free softphones like MicroSIP and Linphone, and the open-source dialer VICIdial are all free to download or sign up for, yet each one leaves part of the bill with you. Google Voice's policy bans automated calls and calls that break do-not-call laws. A softphone needs a phone line you pay for by the minute, and VICIdial needs a server and someone to run it.
Free is enough for a few hand-dialed calls a day while you test a script on a probate or absentee-owner list. Once you work a real seller list, you need list handling, do-not-call checks and a caller ID that sellers answer, and that is where free setups fall short.
The free options, compared
Four setups come up when you look for a free cold call dialer. The table shows what each one gives you for free, what still costs money, and where it falls short on a cold list.
| Option | What is free | What still costs money | What it can't do for cold calling | Who it fits |
|---|---|---|---|---|
| Google Voice (personal account) | A US number, and calls from the US to almost all US and Canadian numbers | Calls to a few US and Canadian places, international calls, and the business plans | Dial automatically or place calls that break do-not-call laws (its policy bans both); one line, no list or dispositions | Personal use, or a few manual calls to warm contacts |
| Free softphone (MicroSIP, Linphone) on a pay-as-you-go SIP line | The softphone app | Per-minute calling and a monthly fee per phone number from a SIP provider | Work a list: no dialing modes, do-not-call checks or calling-hours limits, and you set up caller ID yourself | A caller comfortable with phone settings who wants cheap US minutes and dials by hand |
| VICIdial (open source) | The software, licensed under the AGPLv2 with no licensing cost | A server, a SIP carrier, numbers and minutes, and Asterisk admin time, or a host's monthly fee | Run itself: you configure the do-not-call lists, time-zone rules and drop-rate limits, and it has no on-call comps or AI coaching | A team with an in-house phone-system admin, or budget for hosting |
| Free trial of a paid dialer | The full product for the trial period | The subscription once the trial ends | Stay free: the trial ends about when your first campaign gets going | Anyone choosing which paid dialer to buy |
Sources: Google Voice calling rates, the Google Voice Acceptable Use Policy, the MicroSIP and Linphone project sites, and the VICIdial project page.
Google Voice: free US calls, with limits for cold calling
Google Voice is the closest thing to a free US dialer. Google says its no-charge Basic plan "is for personal, consumer use," and its single-user plans are "only available in the US" (Google Voice Help). It gives you a phone number, and from the US almost all calls to US and Canadian numbers are free.
The catch is its Acceptable Use Policy. It bans "placing calls in violation of laws prohibiting unsolicited marketing calls (e.g., 'do-not-call laws')." It also says "Do not automate our system to place phone calls or send messages automatically." When Google finds a potential violation, it may limit or end your access. That leaves you one line, dialed by hand, with no list, no dispositions and no callbacks. It is a poor base for a cold campaign, because losing that one number stops the campaign.
A free softphone on a pay-as-you-go line
MicroSIP and Linphone are free, open-source softphones. MicroSIP is licensed under the GNU GPL v2, and Linphone is open source under the GPLv3 and runs on desktop and mobile. Neither one reaches a regular phone number on its own. You connect it to a SIP provider, which bills per minute and charges a monthly fee for each number. For hand-dialing US numbers from a computer, it is a low-cost setup, and a do-it-yourself one.
You also own the caller ID. A telemarketer has to transmit a caller ID number that lets anyone make a do-not-call request during regular business hours, and may not block caller ID (47 CFR 64.1601(e)). Use a number you own that rings back to you. Nothing in the app checks a number against your do-not-call list or stops a call after 9 p.m. in the seller's time zone, so those checks live in your spreadsheet or nowhere.
VICIdial: free software, paid phone system
VICIdial is an open-source contact-center suite with a built-in dialer. Its project page describes it as "Open-Source AGPLv2 licensed, with no software licensing cost," and it runs on an Asterisk phone server. The feature list is long: system-wide and per-campaign do-not-call lists, dialing limits by time zone, call recording, and predictive dialing with an adjustable drop rate.
Everything around the license costs money. You pay for a server, a SIP carrier, phone numbers and minutes, plus the Asterisk skills to install, secure and update it, or a hosting company's monthly fee to do that for you. You also set up every safeguard yourself. The do-not-call lists protect you only once you load and update them, and predictive mode makes the federal abandoned-call limits your problem. Under the Telemarketing Sales Rule's safe harbor, abandoned calls stay at or under 3 percent of answered calls per campaign or 30-day period, and unanswered calls ring for at least 15 seconds or four rings. When no rep is free within two seconds of the greeting, a recorded message gives your company's name and phone number (16 CFR 310.4(b)(4)).
Free trials of paid dialers
A free trial is a paid dialer with the meter switched off for a set number of days. Use it to test fit before you commit a campaign to it: load a real skip-traced list, try each dialing mode, and ask how the tool handles do-not-call lists and calling hours. The questions in our dialer buyer's guide for real estate wholesalers make a good trial checklist. Do not start a live campaign on a trial you have not decided to keep, because the list will outlast the trial.
What free setups lack on a seller list
Free and near-free setups miss the same five things on a wholesaling floor. Each one costs you conversations, answer rates or legal exposure.
1. Do-not-call checks before the dial
Google Voice and a bare softphone give you no way to check a number against a do-not-call list before it rings. VICIdial can, once you load and maintain the lists yourself. Your internal do-not-call list and any litigator list you keep have to sit where the dialer reads them before every call. If they live in a separate spreadsheet, a rep will sooner or later redial the seller who asked you to stop.
2. A caller ID sellers answer
Under the FCC's STIR/SHAKEN rules, phone companies sign caller ID on the internet-based parts of their networks, so the receiving carrier can check that the number shown is real. Separately, carriers and analytics firms offer call blocking and labeling, and a number they flag can reach the seller's screen labeled "spam" or "scam likely," per the FCC's call-blocking guide. If you dial a whole list from one free line, every flag lands on that one number. Spread calls across several numbers you own, match the seller's area code where you can, watch each number's answer rate, and when one gets flagged, find and fix the cause before you replace it.
3. Dialing speed
A free line means manual dialing: copy the number, paste, wait, log the result, repeat. Purpose-built dialers add preview, progressive and power modes. Preview shows the rep the record before it dials. Progressive mode places the next call when the rep is free, one line per rep, so the rep spends the hour talking to sellers instead of typing digits. Some power dialers dial several lines at once, which brings the federal abandoned-call limits into play.
4. List and disposition management
Free tools leave you in a spreadsheet. A skip-traced owner with four numbers turns into four rows, callbacks depend on someone's memory, and you cannot see which list, opener or rep books appointments. With acquisition dispositions such as wrong number, follow up and hot, you know who to call again next week and which lists to drop.
5. Coaching and deal math on the call
A free dialer teaches nothing. The rep is alone on the call, and the manager hears about it days later, if at all. When a motivated seller asks what you would pay, the rep needs comps, ARV and a maximum allowable offer on screen, not in a spreadsheet tab that takes a minute to open.
CallVisor is built for the gap a free line leaves on a wholesaling floor. It runs preview dialing on every plan and progressive and power dialing on Pro and above, one call per agent at a time; predictive dialing is on the roadmap and not shipped. It picks a local caller ID from your own numbers and rotates calls across them. It coaches the rep live on screen, transcribes and summarizes each call, and puts comps, ARV and MAO on the call screen while the seller is talking. Check what each plan includes, and what costs extra, on the CallVisor pricing page.
The compliance cost a free dialer leaves with you
Federal calling rules apply to the call, whatever the tool cost. Under the FTC's Telemarketing Sales Rule, a telemarketer checks numbers against a copy of the National Do Not Call Registry no more than 31 days old, honors requests not to be called again, and calls homes only between 8 a.m. and 9 p.m. at the called person's location (16 CFR 310.4). Under the TCPA, someone who gets more than one call in 12 months from the same business that breaks the do-not-call rules can sue for up to $500 per violating call. A court can raise that to as much as $1,500 if the violation was willful or knowing (47 U.S.C. § 227(c)(5)). Google Voice and a bare softphone do none of that tracking for you, and VICIdial does only what you set up.
Do not build your operation on the "we buy houses, so DNC does not apply" idea. Two federal district courts ruled in 2025 that offers to buy a home were not "telephone solicitations" under the TCPA's do-not-call provision (National Law Review). In June 2026 the Ninth Circuit reversed one of them in Coffey v. Fast Easy Offer. It held that a call or text is a telephone solicitation if one purpose of sending it is to sell a service, such as brokerage. The court left open whether a pure offer to buy is one. The operator-safe posture is to scrub against the National Registry and your own lists, honor stop requests and keep to calling hours as if the rules apply, and to run your strategy past your own counsel.
Consent and the calling decision stay with you. A platform cannot know whether the people on your list agreed to be called, and no honest one will claim to. CallVisor checks every dial against your own do-not-call and litigator lists before it rings, applies the calling hours and time zone you set on campaigns, and provides registered A2P 10DLC texting with STOP enforcement. Consent, scrubbing against the National Do Not Call Registry and your compliance program stay with you. If a listed number slips through anyway, read what happens if you call someone on the DNC list by mistake.
When should you upgrade from a free dialer?
Free is the right call while you test a new script, a small list or a new seller segment with a few dials a day. Upgrade when any of these is true:
- You are dialing a real list. Once you have hundreds of numbers, hand-dialing and hand-checking do-not-call lists stop being realistic, and one missed check becomes a liability.
- Answer rates are sliding. If your one number is getting flagged, you need several numbers you own, local caller ID and rotation, and a single free line cannot give you that.
- You are running a team. Live coaching, call review and shared dispositions are the difference between one strong rep and a floor that sounds good on the phone.
- The deal math has to be right on the call. When the rep needs comps, ARV and MAO while the seller is still talking, a spreadsheet in another tab loses you the call.
Past that line, the question shifts from "what is free" to "what pays for itself." Our cheapest-dialer breakdown adds up the full cost behind a low seat price, from minutes and numbers to compliance tools.
If you want a coached dialer that puts comps, ARV and MAO on the call, Get Early Access.
Frequently asked questions
Can you cold call for free?
Yes. You can dial by hand from Google Voice, a cell phone or a free softphone and pay nothing for dialer software. What still costs money is the phone line behind a softphone, the server behind an open-source dialer, and the compliance work a real campaign needs. A free setup does not hold up on a real list at volume.
What is the best free dialer for cold calling?
It depends on what you can live without. For a few hand-dialed US calls, Google Voice is free, but its policy bans automated dialing and calls that break do-not-call laws. For cheap US minutes with more control, use a free softphone such as MicroSIP or Linphone on a pay-as-you-go SIP line, and handle caller ID and do-not-call checks yourself. Of the free options, only VICIdial is a full dialer, with do-not-call lists and time-zone rules built in, and it needs a server and a carrier you run or pay someone to run.
Is there a free US dialer?
Google Voice is the closest. The personal plan is free and available only in the US, and from the US almost all calls to US and Canadian numbers are free, per Google Voice Help. It is one line you dial by hand under a policy that bans automated dialing and do-not-call violations. For more lines or automatic dialing to US numbers, you pay for minutes, through a SIP provider or a paid dialer.
Is Google Voice good for cold calling?
Not for a cold campaign. Google Voice gives you one number and one line with no list management, no do-not-call checks and no coaching. Its Acceptable Use Policy bans calls that violate do-not-call laws and bans automating the system to place calls, and Google may limit or end your access over a violation. It suits a few manual calls to warm contacts.
Are open-source dialers like VICIdial really free?
The software license is free. VICIdial is AGPLv2 licensed with no software licensing cost, and it includes do-not-call lists, time-zone dialing rules and predictive dialing. The phone system around it costs money: a server, a SIP carrier, numbers and minutes, and the Asterisk skills to configure and maintain it, or a hosting company's monthly fee. You also configure every safeguard yourself.
This article is general information, not legal, financial, or investment advice. Real Invest Republic / CallVisor is not liable for decisions made based on it. Consult a qualified professional (attorney, CPA, or licensed advisor) about your specific situation at your own discretion.
- dialers
- cold calling
- tools
- wholesaling
- dnc
- tcpa