What is the best parallel dialer for SDR teams?

The short answer

Teams of 9 or more reps should pick Orum or Nooks, the two most complete platforms (both sold by quote). Teams under 9 should start with Salesfinity, the only one here with a published self-serve price ($299 per user a month, billed monthly, as of September 2026). Founders or 1–3 reps who also need a business phone: Kixie.

How we research this: facts come from each vendor’s public pages and named studies, dated where shown; the math is ours and labeled. Vendor prices and limits are as of October 4, 2026.

Updated

How do the top parallel dialers compare side by side?

Five dialers, one table. Every fact comes from the vendor's own site as of September 2026. Vendor claims are labeled as such.

Lines at once CRM and engagement sync (named by vendor) Compliance tools (vendor-documented) Pricing (as of Sept 2026) Best for
Orum Up to 5 lines; admins set the maximum for the org or per rep Salesforce, HubSpot (help center: full calling from lists on Sales Hub Starter; on Professional, calls run from call tasks, not directly from sequences), Outreach, Salesloft Recording by area code: rep-only (one-sided) or both sides; org-wide Do Not Call (DNC) automations Quote only. Minimum 9 seats. Free trial limited to 500 dials Teams of 9+ that want admin control
Nooks Multi-line; no maximum published. Its help center calls 5 at a time "a goal to strive for" Salesforce, HubSpot, Outreach, Salesloft (bi-directional CRM sync) Downloadable DNC report for audits (November 2025 release); admin controls for call recordings by area code, by country, or rep-side only; vendor-stated spam protection, number rotation and carrier registration Quote only Teams of 9+ that want dialing and sequencing in one tool
Salesfinity Up to 5 parallel lines on every plan Salesforce, HubSpot, Outreach, Salesloft, Pipedrive, ActiveCampaign, Amplemarket DNC list; call recording; vendor-stated carrier registration and STIR/SHAKEN attestation. Check its recording settings for two-party-consent states before you dial Gold: $299 per user/month, self-serve, monthly, cancel anytime. Enterprise tiers: custom, annual only Teams under 9 that want to start this week
Koncert Symphony: 1–4 lines. Symphony+: 1–5 lines Salesforce (native, on AppExchange), HubSpot, Outreach, Salesloft SOC 2 Type II; managed caller ID reputation with a "heat map"; automated local presence. Check its recording settings for two-party-consent states before you dial Quote only ("Get Pricing" on every plan) Salesforce-first teams that want a native app
Kixie Multi-Line PowerDialer: up to 4 lines HubSpot, Salesforce, Pipedrive, Zoho DNC add-on (automated compliance with Do Not Call registries); call recording on every plan; ConnectionBoost add-on (vendor-stated: better connection quality) Quote only. 7-day free trial, no credit card Founders and 1–3 reps who also need a business phone and SMS

Two notes before you buy anything. First, parallel dialers only make money if your phone data is good. Second, no dialer makes you compliant by itself. The settings help, but the rules are on you.

When should you skip each dialer?

One skip line per tool, from the table above.

  • Orum: skip it if you have fewer than 9 reps. It has a 9-seat minimum and no public price.
  • Nooks: skip it if you need a published price or a documented line cap before the demo. It publishes neither.
  • Salesfinity: skip Gold if a manager needs one team dashboard. Team admin, user invites and manager reporting sit on Enterprise, which is annual only.
  • Koncert: skip it if you don't live in Salesforce. Its edge is the native AppExchange app, and it's quote-only.
  • Kixie: skip it if you already have a business phone system, or want more than 4 lines. Its Multi-Line PowerDialer tops out at 4.

What does a parallel dialer actually do?

It dials several numbers at the same time and connects the rep to whoever picks up first. The rep skips the ringing, the voicemails and the dead numbers, and spends the hour talking.

Compare that with a power dialer, which calls one number after another automatically. Faster than clicking by hand, but still one line. A parallel dialer runs up to 4 or 5 lines per rep on the tools above, so the rep burns through a list several times faster.

That speed cuts both ways. A rep on 5 lines empties a bad list 5 times faster, too.

Which parallel dialer is best for a team of 9 or more reps?

Orum, if control and compliance settings matter most. Nooks, if you want the dialer and your sequences in one place. Both are sold by quote, so book both demos in the same week and make them compete.

Why Orum: it documents the admin controls a sales ops lead asks for. Recording can be set to rep-only or both sides by area code, so calls into states that require everyone's consent can be handled differently. DNC automations apply across the whole organization. The catch: a 9-seat minimum and no public price.

Why Nooks: it runs parallel dialing alongside your Salesloft and Outreach cadences and syncs both ways with Salesforce and HubSpot. Its sequencing product adds call, email, SMS and social steps in one workspace. Its DNC report can be downloaded for audits, and admins can manage recordings by area code or country. The catch: no published price and no published line maximum.

Tie-breaker question for the demo: "Show me how we stop recording the prospect in two-party-consent states, and how a DNC request from one rep blocks the number for everyone." The tool that answers with settings, not slides, wins.

Which parallel dialer is best for a team under 9 reps?

Salesfinity. It's the one tool here where you can see the price, pay monthly and start the same day: $299 per user a month on the Gold plan, with up to 5 parallel lines, a DNC list and call recording (as of September 2026).

Salesfinity says reps reach 10–15 live conversations an hour (vendor-stated). Treat that as a ceiling, not a forecast. Your list decides your number.

The catch: Gold seats are individual workspaces. Team admin, user invites and manager reporting sit on Enterprise, which is annual only. Fine for two or three reps who manage themselves. A manager who needs one dashboard should price Enterprise against Orum and Nooks.

Koncert is the other name worth a demo, especially if you live in Salesforce: its dialer is a native AppExchange app. But it no longer shows a price on its pricing page, so it's a quote conversation like Orum and Nooks.

Which parallel dialer fits a founder or 1–3 reps?

Kixie's Multi-Line PowerDialer. It dials up to 4 lines, and every Kixie plan includes a business phone line, SMS and voicemail drop. That matters when you don't have a phone system yet. Pricing is by quote, but the 7-day trial needs no credit card (as of September 2026).

Honest take: at 1–3 reps, ask whether you need parallel dialing at all. If you're calling fewer than a few hundred numbers a week, a single-line power dialer is usually enough, and cheaper.

Do you have enough volume for a parallel dialer? (The 5-point fit check)

Run your numbers before you run a demo. Here's the math, using one vendor's own SDR team's dials from Cognism's State of Cold Calling 2024: 55,701 dials produced 9,247 connects (16.6%), 5,265 conversations and 254 meetings. That's 4.82% of conversations turning into meetings.

Put the whole chain together and it's about 4.6 meetings per 1,000 dials, or roughly 1 meeting per 220 dials (254 ÷ 55,701 = 0.46%). That's our math on Cognism's totals, not a promise.

So if a rep needs 10 meetings a month, the math says about 2,200 dials a month, or about 105 a day over 21 sending days (2,200 ÷ 21 ≈ 105). For scale: The Bridge Group's 2025 SDR report found phone-centric teams average 56 dials a day. That gap is exactly what a parallel dialer closes. It shortens the hours, not the dial count. Put your own targets into the Pipe Playbook calculator to see your number.

The 5-point fit check. Buy a parallel dialer only if you can say yes to all five:

  1. Volume: each rep has enough fresh, callable numbers to feed 3–5 lines every day, every week, without recycling the same people.
  2. Data quality: your connect rate is in the range of that one team's ~1 in 6. Far below that is usually a data problem, and a faster dialer just burns bad data faster.
  3. Compliance: you know which states your reps call, you've set recording rules for states that require every party's consent, and you scrub against DNC lists. Check with legal counsel before the first dial.
  4. Opener: reps have a tested opener. Gong Labs (2018, 90,380 calls) found "the reason for my call is…" did 2.1x better, while "Did I catch you at a bad time?" cut meetings by 40%.
  5. Logging: every call, outcome and recording logs to your CRM automatically. If it doesn't, managers can't coach and you can't prove the dialer paid off.

Any "no"? Fix that gap first. A power dialer and better data will beat a parallel dialer on a thin list.

What should you check in the demo?

Ask for these five things live, on screen:

  • Line control: can admins cap lines per rep or per team?
  • Consent settings: can you set recording rules by state or area code?
  • DNC: does one rep's DNC mark block the number across the whole org?
  • Number health: how does the tool protect caller IDs from spam labels (rotation, registration, monitoring)?
  • CRM write-back: which fields sync back to Salesforce or HubSpot, and how fast?

Still building the rest of your outbound stack? Pick the Stack walks you through every layer.

Every tool we cover, grouped by job, is on the tools hub.

The sending days, sends per inbox, inboxes per rep and touches per contact on this page are our house assumptions, with one line on why we use each.

Sources

Vendor pages accessed September 29, 2026. Research data from the original studies named.

Frequently asked questions

What is the difference between a parallel dialer and a power dialer?

A power dialer calls one number at a time, automatically, one after another. A parallel dialer calls several numbers at once (up to 4 or 5 on the tools above, as of September 2026) and connects the rep to the first person who answers.

How many lines should an SDR dial at once?

Start low and build up. Nooks' help center suggests 1–2 at a time for your first sessions and working toward 5. Orum's help center says its own team dials 4–5 numbers at a time at roughly a 5% connect rate (vendor-stated). Your list quality and your market's rules set the real limit.

Do Nooks and Orum publish their prices?

No. Both are quote-based as of September 2026. Orum's pricing page states a 9-seat minimum and a free trial limited to 500 dials.

Is parallel dialing legal?

The dialer isn't the question. How you use it is. Calling and recording rules vary by country and US state, and some states require every party to consent to a recording. Use the dialer's DNC and recording settings, and get legal advice for the regions you call.

What connect rate should I expect with a parallel dialer?

A parallel dialer doesn't change who answers. It changes how fast you find them. One team's connect rate in that data was about 16.6% of dials. It isn't an average or a target. Divide your own connects by your dials to see where you stand. Our cold call connect rate play shows how to diagnose yours.

Keep reading