Business phone systems · 2026
OpenPhone for cold calling: no dialer, a fair-use ban on auto-dialers, and what to run beside it
Last updated September 3, 2026
OpenPhone is the phone system founders already have. It is cheap, the app is good, the shared inbox is the reason people pick it, and at some point someone says "we have unlimited calling, let's just cold call from it." The articles ranking for this query are written by competing dialers and say "OpenPhone lacks a power dialer, buy ours." True, but incomplete. The fuller answer is that OpenPhone (which rebranded to Quo in 2025) publishes a Fair Use Policy that rules cold calling and auto-dialers out in writing, and that the number you would burn is the one your customers call. Below: the policy text, the prices, the spam mechanics, and the setup that keeps OpenPhone where it is good.
The short answer
No. OpenPhone has no power or auto dialer, and its Fair Use Policy prohibits auto-dialers and cold calls without an opt-out mechanism. It is a ~$15–$35/user/month business line (list, checked September 2026) with unlimited US and Canada calling for normal business use. Keep it for the published number, inbound and texting. Run outbound on your own Twilio numbers with a free power dialer: about $51 a month for one rep at 100 dials a day, including $29 of software, on numbers you own and can rotate without touching the company line.
What OpenPhone costs and includes (checked September 2026)
| Plan | Annual | Monthly | Outbound-relevant features |
|---|---|---|---|
| Starter | $15/user | $19/user | One number per user, unlimited US/CA calling and SMS under fair use, voicemail transcription, click-to-call, API |
| Business | $23/user | $33/user | Adds HubSpot and Salesforce integrations, call transfer, IVR, AI call summaries and transcripts, webhooks (beta) |
| Scale | $35/user | $47/user | Adds AI call tags, onboarding, priority support |
| Any plan | $5/number/month extra; A2P registration $19.5 one-time | No power dialer, no auto dialer, no list or campaign dialing on any tier | |
Source: quo.com/pricing, list prices. openphone.com now redirects there. "Unlimited" is stated as subject to the Fair Use Policy on the pricing page itself.
What the Fair Use Policy actually says
This is the part the dialer-vendor articles skip, and it matters more than the missing feature. The policy at quo.com/fair-use (OpenPhone, doing business as Quo; last updated December 1, 2025, checked September 2026) lists prohibited calling activity. Paraphrased closely:
| Topic | Policy |
|---|---|
| Auto-dialers | Bots, auto-dialers or any automated calling systems: prohibited under any circumstances |
| Cold calls | Calls without proper consent, including cold calls or prerecorded campaigns lacking a clear opt-out mechanism: prohibited |
| Volume pattern | Calling large numbers of unique or sequential numbers in a manner inconsistent with normal business use: prohibited |
| Short calls and spikes | Excessive short-duration calls or abnormal spikes in call attempts: prohibited |
| Quiet hours and DNC | Calling during prohibited hours, calling people on internal or external Do Not Call lists, or continuing after a request to stop: prohibited |
| Consequence | Quo may impose limits, charge overages or terminate the service at its discretion, typically after written notice and a period to correct |
Read it as a cold caller: a rep dialing a purchased list is placing calls to a large number of unique numbers, most of them short (voicemail, no answer), at a volume that spikes at 9am. Three of the six rows describe that morning. Whether the policy is ever enforced against a two-person startup is a separate question; that it exists, and that Quo can throttle or close the account on the strength of it, is the honest answer to "can I cold call with OpenPhone."
Compare: a Twilio account you own is bound by Twilio's acceptable use policy, which requires compliant calling (consent where the law demands it, DNC hygiene, calling hours) but does not prohibit manually initiated outbound sales calls or the power dialers that queue them. The legal rules are the same either way; see DNC and TCPA compliance for cold callers.
The missing dialer, and why an overlay does not fix it
OpenPhone's outbound tooling is click-to-call: make Quo the default calling app and a phone number clicked anywhere loads into the dialer, where you press call. There is no list to load, no auto-advance, no disposition prompt between calls, no local-presence rotation, and no callback queue. At 20 follow-up calls a day that is fine. At 100 cold calls it is the copy-paste workflow a power dialer exists to remove; see how to make 100 cold calls a day.
A few browser extensions and AI overlays advertise automated dialing on top of OpenPhone. Even if they work, the first policy row above bars auto-dialers under any circumstances, so the overlay converts a tooling gap into a terms breach on your primary business number. Not a trade worth making.
The spam-label risk on a number you cannot afford to lose
Quo's own article on spam labels (quo.com/blog) names the patterns carriers flag: a spike such as 100 calls in an hour from one number, and many calls lasting only a few seconds. It recommends ramping gradually and prioritising calls to existing relationships over broad unsolicited outbound. Cold calling is, by construction, short calls to strangers in bursts.
The structural problem is where the number lives. A Quo number sits in Quo's carrier account with Quo's STIR/SHAKEN attestation, and its reputation is managed through Quo's registration process and the Free Caller Registry submission Quo makes on your behalf. If cold calling earns a "Spam Likely" label, it lands on the number printed on your website and email signature, and clearing it means a support ticket and a wait. On your own Twilio account the outbound numbers are yours: separate from the company line, rotated across area codes through local presence, and retired for ~$1.15/month each when one is tired. See how many calls a day before spam-likely and warming up a number.
The setup: OpenPhone for the line, your own Twilio for outbound
Give each tool the job it is built for. Quo keeps the published number, inbound calls, the shared inbox, texting on the registered A2P campaign and, on Business, the HubSpot sync. A bring-your-own-Twilio power dialer takes the list: CSV import with automatic column mapping, one number per rep in the prospect's area code, auto-advance with a disposition between calls, recordings stored in your Twilio, DNC suppression and callback reminders. DialSheet is the only free power dialer we know of that runs on your own Twilio account; the software is $0 for one person up to 500 leads and 500 calls a month, and $29 a month per 3 seats above that.
Table assumptions as on our minutes calculator: 4 in 10 dials reach voicemail (one billed minute each), 1 in 10 reach a person for about three minutes, 21 working days, Twilio at ~$0.014/min and ~$1.15/month per number. Every row exceeds the free plan's 500 calls a month, so the software line is Pro. The last column adds a Quo Starter seat at the monthly rate so you can see the whole phone bill.
| Team | Calls / mo | Billed min / mo | Dialer software | Twilio | Outbound total | + Quo Starter |
|---|---|---|---|---|---|---|
| 1 rep, 50/day | 1,050 | 735 | $29 | $11 | $40 | $59 |
| 1 rep, 100/day | 2,100 | 1,470 | $29 | $22 | $51 | $70 |
| 1 rep, 150/day | 3,150 | 2,205 | $29 | $32 | $61 | $80 |
| 3 reps, 100/day | 6,300 | 4,410 | $29 | $65 | $94 | $151 |
For scale: replacing Quo with a per-seat sales dialer that includes a power dialer runs about $30–50 per user per month on Aircall or $19–89 on JustCall (list ranges, August 2026), with seat minimums, before minutes on some of them. The three-rep row above is $29 of software in total. Part-timers under about 24 dials a working day fit the free plan and pay only Twilio. (If you never want a Twilio account, there is also a $49-a-month managed line with 1,500 minutes on DialSheet's own carrier account; see own Twilio vs managed line.)
Wiring the two together
- Sign up for Twilio, add a card (the trial cannot cold call), and buy one local number per rep in the target area code.
- Paste the Account SID and Auth Token into DialSheet under Settings → Twilio. About ten minutes end to end, including the Twilio signup.
- Import the list as CSV. Only the phone column is required; company, title and notes map automatically and show during the call.
- Dial. When a prospect wants a text or a callback on the main line, send it from Quo, whose A2P-registered number is the one that should carry the relationship.
- Sync what matters: export dispositions to CSV weekly into the CRM, or point a DialSheet webhook at Zapier or Make. Quo exposes a REST API and webhooks too, so a developer can join the two; there is no native integration between them.
Keep OpenPhone for the line. Cold call on numbers you own.
Free for one person, $29 a month per 3 seats for a team. Power dialing, local presence, DNC list and recordings on your own Twilio at about ~$0.014/min. No per-user fee and no fair-use clause on the dialer. No credit card for the free plan.
Start dialingQuestions people actually ask
Can you cold call with OpenPhone?
Technically you can press call as many times as you like, since every plan includes unlimited US and Canada calling, but the Fair Use Policy (OpenPhone now trades as Quo; the policy was last updated December 1, 2025) says you may not place cold calls lacking a clear opt-out mechanism, may not use auto-dialers or automated calling systems under any circumstances, and may not call large numbers of unique or sequential numbers in a way inconsistent with normal business use. Quo reserves the right to impose limits, charge overages or terminate the account for breaches, usually after written notice. A rep working a purchased list all day is squarely inside the described pattern, so cold calling on OpenPhone is a policy risk, not merely a tooling gap.
Does OpenPhone have a power dialer or auto dialer?
No. Checked September 2026, none of the three Quo plans (Starter, Business, Scale) lists a power dialer, auto dialer, list dialing or campaign calling. What it has is click-to-call: set Quo as the default calling app and clicking a number in a browser or CRM loads it into the Quo dialer for you to place manually. A few third-party overlays advertise auto-dialing on top of OpenPhone, but running one would itself breach the fair-use clause that prohibits auto-dialers, so they do not change the answer. If you want a list to be dialed one after another with a disposition captured between calls, that has to happen in a different tool on a different carrier account.
How much does OpenPhone cost per user in 2026?
List prices on quo.com/pricing, checked September 2026: Starter $15 per user per month billed annually or $19 monthly; Business $23 annually or $33 monthly; Scale $35 annually or $47 monthly. Every plan includes one number per user and unlimited calling and texting to US and Canadian numbers subject to the Fair Use Policy. Extra numbers are $5 a month each. Texting a business number needs A2P 10DLC registration, which Quo bills at $19.50 one-time plus a small monthly campaign fee. The HubSpot and Salesforce integrations, call transfers, IVR and AI summaries start on Business. International calling is metered per destination.
Will my OpenPhone number get flagged as spam if I cold call from it?
It is likely at real cold-calling volume, and Quo says as much. Its own article on spam labels names a spike such as 100 calls in an hour from one number and many calls of only a few seconds as the patterns carriers flag, and advises ramping volume gradually and prioritising calls to existing relationships over broad unsolicited outbound. Your Quo number lives in Quo’s carrier account with Quo’s STIR/SHAKEN attestation and reputation, so a flag on it also affects the line customers call you on, and the remedy is Quo’s registration and remediation process rather than something you control. Keeping outbound on separate numbers you own, and rotating them, is the standard answer.
What should I use instead of OpenPhone for cold calling?
Two sensible routes. A per-seat sales dialer such as JustCall (~$19–89 per user per month) or Aircall (~$30–50) with a power dialer on its mid tiers, which replaces OpenPhone entirely and usually costs more per seat. Or keep OpenPhone for the company line and inbound and add a bring-your-own-Twilio power dialer for outbound: DialSheet is free for one person (up to 500 leads, 500 calls a month) or $29 a month per 3 seats, and Twilio bills the calls at about ~$0.014/min plus ~$1.15/month per number. One rep at 100 dials a day is about $51 a month for the outbound side, on numbers you own with your own Twilio attestation, and the OpenPhone bill does not change.
Can OpenPhone and a separate dialer share contacts and call logs?
Partly, and with work. Quo has a public REST API and webhooks for calls, messages and contacts, and DialSheet has CSV import and export, a REST API and webhooks. There is no native integration between the two, so the practical pattern is to give each tool its own job: Quo owns the published number, inbound calls, texting and the shared inbox; the dialer owns the outbound list, dispositions and recordings. Interested prospects get a follow-up text from the Quo number, or you push a lead to the CRM through a webhook and Zapier. A weekly CSV export from the dialer into the CRM covers the rest for most small teams.