Dialer Compare

Built by CallCloud. CallCloud makes one of the parallel dialers compared here. Every price and limit comes from each vendor's own pages, linked in the table.

JustCall vs Koncert: Pricing, Lines and Limits

Neither JustCall nor Koncert publishes a price: both quote on request, and JustCall sells at least 2 seats. JustCall is a call-center predictive dialer; Koncert is a standalone web dialer. The table below sets the two side by side on price, lines, calling limits, billing and fine print, from each vendor's own pages.

By the CallCloud team · October 9, 2026 · 8 sources

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JustCall and Koncert side by side
JustCall (pricing page, opens in a new tab)Call-center predictive dialerKoncert (pricing page, opens in a new tab)Web dialer
Price
Month to monthOn requestOn request
AnnualOn requestOn request
Bill at 210 dials a dayPrice on requestPrice on request
Bill at 600 dials a dayPrice on requestPrice on request
Bill at 2,000 dials a dayPrice on requestPrice on request
SetupNot statedNot stated
NumbersNot statedNot stated
On the phone
Lines104
CallingUnlimited, with a fair-use policyUnlimited, with a fair-use policy
Spam protection
  • Caller-ID rotation: Not stated
  • Number-health monitoring: Not stated
  • Flagged numbers rested or replaced: Not stated
  • Branded caller ID: Not stated
  • Caller-ID rotation: Yes
  • Number-health monitoring: Yes
  • Flagged numbers rested or replaced: Yes
  • Branded caller ID: Not stated
Pick-upNo pause claimedJustCall says the agent is patched in 'the moment a live human picks up'; it also says answering-machine detection distinguishes a human hello from a voicemail greeting. It publishes no millisecond connect time.No pause claimedKoncert says Quick Connect connects live calls instantly, with “no more awkward pauses when prospects answer.” It publishes no millisecond figure.
Calling toolkit
  • Voicemail drop: Yes
  • Voicemail detection: Yes
  • Local presence: Yes
  • Call recording: Yes
  • AI call notes: Yes
  • Live coaching: Not stated
  • Do-not-call tools: Yes
  • Voicemail drop: Yes
  • Voicemail detection: Yes
  • Local presence: Yes
  • Call recording: Yes
  • AI call notes: Not stated
  • Live coaching: Yes
  • Do-not-call tools: Not stated
Terms
BillingJustCall offers monthly or annual plans that automatically renew; non-renewal requires at least 30 days' notice for a standard plan or 45 days for an Order Form.The subscription term, authorized-user count and fees are specified in the order form; public materials reviewed do not establish monthly, quarterly or annual commitments or a cancellation-notice period.
Seat minimum2None
Free trial14-day free SalesPro trial; trial calling limits apply.Free trial for qualified sales teams; Koncert does not publish its length.
Runs on its ownYesYes
CRM syncSalesforce, HubSpot, Pipedrive, Zoho CRM, ActiveCampaign, Salesloft, Outreach, ApolloSalesforce, HubSpot, Outreach, SalesLoft, Apollo.io
Fine print
  • JustCall's predictive-dialer cost guide lists $249/user/month or $229/user/month billed annually, but its main pricing page calls SalesPro pricing Custom and asks buyers to get a quote.
  • SalesPro has a two-license minimum; the predictive dialer is included rather than charged as a separate add-on.
  • New-plan accounts receive two complimentary phone numbers per account, not per seat; additional numbers are billed monthly at an unstated price.
  • SalesPro's unlimited voice minutes are subject to fair use: scaled telephone operations such as call centers or telemarketing are excluded, and JustCall can impose limits for abuse. No numerical voice-minute ceiling is published.
  • Measured calling usage is rounded up to full minutes; an outbound call receiving answer supervision, including ring time, has a one-minute minimum.
  • International, premium-rate and certain other calls are outside included regional calling; applicable charges can be deducted from JustCall credits.
  • The free trial caps outbound calls at 50 minutes total and calls at seven minutes each.
  • SalesPro's fair-use policy limits one-to-one inbound and outbound SMS to 1,000 segments per user per billing month; that figure is not a voice-minute cap.
  • Koncert directs buyers to request pricing for both Symphony and Symphony+; their monthly and annual seat prices are not stated.
  • The maximum number of parallel lines depends on the package or the customer’s quote or order form.
  • Koncert defines normal business use by the calling patterns of at least 95% of subscribers on the same plan; it does not publish a numerical domestic-calling allowance for these packages.
  • Appointment-setting, lead-generation, telemarketing, call-center and B2C firms require Koncert’s written pre-approval under its fair-use policy.
  • If separately purchased, Group B international calling is limited to 500 minutes per user per month, pooled across the organization; excess calls may incur charges at applicable rates or prompt a plan change.
  • Koncert says customers can purchase and refresh caller IDs, but does not publish a per-number price on its pricing page.

Bills are one seat, month to month where sold, on the calculator's model (answered calls billed as one minute each on a per-minute meter). Spam protection, pick-up and the toolkit are what each vendor states, not our own tests. Read from each vendor's pages on 2026-10-09.

Questions

Which is cheaper, JustCall or Koncert?

JustCall does not publish a price, so its bill cannot be worked out without a quote. Koncert does not publish a price, so its bill cannot be worked out without a quote.

How many lines do JustCall and Koncert dial at once?

JustCall dials 10 lines at once per rep on SalesPro; Koncert dials 4 lines at once per rep on Symphony, and up to 5 on Symphony+.

Can you pay for JustCall or Koncert month to month?

JustCall and Koncert both set their terms in an order form rather than on a public price list.

Do JustCall and Koncert have a seat minimum?

JustCall sells at least 2 seats, so a smaller team still pays for 2; Koncert sells a single seat.

Do JustCall and Koncert have a free trial?

JustCall: 14-day free SalesPro trial; trial calling limits apply. Koncert: Free trial for qualified sales teams; Koncert does not publish its length.

Which CRMs do JustCall and Koncert connect to?

JustCall lists Salesforce, HubSpot, Pipedrive, Zoho CRM, ActiveCampaign, Salesloft, Outreach and Apollo. Koncert lists Salesforce, HubSpot, Outreach, SalesLoft and Apollo.io. Both connect to Salesforce, HubSpot, Salesloft and Outreach.

More comparisons

Every comparison · All 18 dialers in one table

Sources

  1. JustCall pricingjustcall.io
  2. JustCall: 8625166 a guide to the justcall free trialhelp.justcall.io
  3. JustCall: predictive dialer pricingjustcall.io
  4. JustCall: integrationsjustcall.io
  5. Koncert pricingkoncert.com
  6. Koncert: koncert ai dialerkoncert.com
  7. Koncert: integrationskoncert.com
  8. Koncert: ai parallel dialerkoncert.com

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