Koncert alternatives: 8 solutions compared (2026)
Koncert sells four diallers under four different names and publishes no pricing. This page straightens out the vocabulary: what each dialling mode actually does, what the vendor documents publicly, where the data goes, and the criteria that should decide the matter if you call from France.
The essentials
- Koncert is an American vendor based in Salem, New Hampshire. The company was called ConnectLeader until its renaming, announced on 20 April 2021.
- Koncert offers four dialling modes: a click dialler, a sequential dialler (Flow), a parallel dialler (Symphony) and an agent assisted dialler.
- The parallel dialler is advertised at 1 to 4 lines (Symphony) and 1 to 5 lines (Symphony+). The vendor FAQ states that 4 lines is the default and recommended setting.
- No price is published: the seven plans on the pricing page all lead to a contact form, with no amount and no minimum licence count shown.
- The G2 rating is 4.6 out of 5 across 422 reviews, including 80% five star reviews. Koncert is SOC 2 Type II certified and states that it adheres to the EU-U.S. Data Privacy Framework, which governs transfers of personal data from the European Union to the United States.
The 8 solutions at a glance
Eight vendors, and almost as many definitions of the word dialler. Telling them apart by their dialling mode, rather than by their marketing, avoids comparing a business phone system with an outbound dialler.
Who sits where
Two families of tools, and one platform that covers both
Telephony
Aircall
CloudTalk
JustCall
Prospecting
Orum- KKoncert
Nooks
Flunter
Minari
Skipcall, from telephony to prospectingSkipcall, from telephony to prospectingAircallCloudTalkJustCallOrumKKoncertNooksFlunterMinariThe market splits into two families. On the left, business telephony: Aircall and CloudTalk. On the right, the outbound diallers: Koncert, Orum and Nooks for the American market, Flunter and Minari in France.
Skipcall spans both. The same platform equips the prospecting team with the four line parallel dialler, and every other colleague who simply needs a handset (management, admin, customer service) with a line at €15 per month. You therefore do not have to run a business phone provider alongside a dialler for the sales team, with two contracts, two invoices and two directories.
Business telephony · Parallel dialler 4 lines
Four line parallel dialling for the people who prospect, and full telephony for every other seat, in the same subscription: a business number, inbound calls, voicemail, SMS, mobile and web apps, call sequences, contacts, call transcription and call summary. From €15 per licence, with no minimum.
Dialling and sequencing platform · Click, sequential, parallel 4 to 5 lines, assisted
Four dialling modes, one of them assisted by human agents. No public pricing.
Parallel dialler for large teams · Parallel dialler up to 10 lines
The highest line count on the market. Pricing on request.
Parallel dialler for large teams · Parallel dialler with a virtual sales floor
Built for large American teams. Pricing on request.
Multichannel communication platform · Power, dynamic and predictive dialler
The only one here to offer all four modes. That breadth is paid for in complexity.
Parallel dialler · Parallel dialler up to 5 lines
The same dialling engine as Skipcall, with a narrower feature scope.
Parallel dialler · Parallel dialler up to 5 lines
The same promise as Skipcall, with a different product logic.
Call centre software · Preview, power and parallel dialler as an option
Coverage of more than 160 countries. The parallel dialler is an option billed separately.
Cloud business telephony · Power dialler, one number at a time
Solid on inbound and on the switchboard. Three licence minimum.
Who Koncert is
Koncert is an American vendor of diallers and sales sequences, based in Salem, New Hampshire. The company traded as ConnectLeader until 20 April 2021, when it announced a change of identity to reflect a scope broadened to multichannel. Its home page claims fifteen years of maturity on its diallers. This is not a new entrant, then: it is an established player in the North American market, whose positioning differs from yours if you call French prospects.
2021
Renaming
ConnectLeader becomes Koncert
15 years
Claimed track record
On its diallers
4
Dialling modes
Click, Flow, parallel, assisted
United States
Head office
Salem, New Hampshire
What users say
Koncert scores the same rating on the two main review platforms, but on volumes that bear no comparison. The gap is worth reading before drawing a conclusion.
This is a high rating, backed by a substantial number of reviews. Positive feedback centres on outbound dialling productivity and on support quality, which G2 singled out in its 2026 reports.
The same rating, but on eight reviews only. The gap in volume between the two platforms is a reminder that the user base speaking publicly is North American, and that no feedback from a French team can be identified there.
Breakdown of the 422 G2 reviews
Recorded on 3 September 2026
The distribution is clear: 97% of reviews sit at four or five stars, and there is no significant share of very negative reviews. That is a solid signal of product satisfaction. It remains to check that the reservations expressed in the middle reviews do not touch your use case.
This is the complaint cited most often in G2 reviews: a delay between the prospect picking up and the rep being connected, which breaks the rhythm of the conversation. It is a constraint inherent to any multi line dialling, to be measured on your own calls rather than dismissed.
Several users report slowdowns and glitches when the platform is pushed to very high volume. The point deserves to be tested over a full day, not over a thirty minute demonstration.
The seven plans on the pricing page all lead to a form. Sizing a budget therefore means going through a sales cycle, and the cost per conversation cannot be compared with a tool that publishes its prices.
The privacy policy states that each customer data set is stored “in our data center”, without naming a country. It relies on the EU-U.S. Data Privacy Framework, which governs transfers to the United States. No European data centre is mentioned.
Where the data is hosted
This is the point most often missing from comparisons, and the first one your legal department will raise. Call recordings contain personal data, sometimes sensitive.
Koncert
Location not published
The privacy policy states that each customer data set is logically partitioned and stored “in our data center”, without specifying the country. Koncert states that it adheres to the EU-U.S. Data Privacy Framework, to its United Kingdom extension and to the Swiss framework, mechanisms that govern transfers of personal data from Europe to the United States. The vendor is SOC 2 Type II certified and offers a data processing agreement on request.
Skipcall
Scaleway, France
Hosting is handled by a French cloud provider, which places the processing under the GDPR and European law, with no transfer to a third country.
The cost, and what Koncert does not publish
Koncert shows no amount: its seven plans all lead to a contact form. Comparing two prices is therefore impossible. What remains comparable is what each vendor agrees to make public, and then the number of conversations each dialling mode produces at an equal volume of calls.
Pricing on request is neither a flaw nor an advantage in itself: it is a commercial choice, and a common one in the American market. It does have one practical consequence: you cannot work out your cost per conversation before entering a sales cycle, nor compare two offers on the same basis.
Simulator
How many conversations for your team?
Sequential dialling
·
Conversations per month: ·
Cost per conversation: ·
Skipcall
·
Annual cost: ·
Cost per conversation: ·
The full reasoning on cost per meeting is set out in the analysis parallel dialler vs power dialler. This page is about the decision to switch, not about choosing between two spec sheets.
If your choice comes down to these two tools specifically, the head to head, criterion by criterion, is in the Skipcall vs Koncert comparison.
Your telephony solution live in 5 minutes.
The tool that lifts your team's performance. One licence is enough, and the data stays hosted in France.
No commitment · Account active immediately
The French legal framework from 11 August 2026
This is the parameter most comparisons ignore, even though it changes the economics of telephone prospecting in France.
From 11 August 2026, cold calling consumers in France moves from opt-out to opt-in: a call is lawful only if the person has given prior consent. Bloctel, the French opt-out register, disappears on that date. Business to business prospecting remains possible, subject to the rules that apply to data processing: the CNIL, the French data protection authority, points out that people must be told their data is used for prospecting and must be able to object simply and free of charge.
The direct consequence for choosing a tool: the volume of permitted calls falls, so each attempt has to produce more. A dialler that filters out voicemail and puts your reps into conversations more often is no longer a comfort, it is what makes the channel profitable.
Read the full cold calling guide →What to check before switching
Since no price is public, everything is settled in the document you sign. Note the unit price, the number of licences committed, how long the offer stands, the renewal date and the notice period. These are the only terms you can rely on the day you decide to leave.
The public pages advertise 1 to 4 lines, 1 to 5 lines on the higher plan, and the FAQ describes 4 lines as the default setting. Have the number of lines opened on your account written into the contract: that is what determines your volume of conversations, not the name of the plan.
Call logs, recordings, transcriptions, notes and statistics: ask for the export while the account is still active, and check the format. A lost history cannot be rebuilt, and it carries part of the value of your customer relationships.
Koncert connects to Salesforce, HubSpot, Zoho, Salesloft, Outreach, Gong and Apollo, among others. List what reaches your CRM today, field by field, and check that the equivalent will exist tomorrow. That is where the gaps sit, more than in the calling features themselves.
The four dialling modes, and the one you need
Preview, power, parallel, predictive: four close words, four different machines, and a vocabulary that vendors are happy to keep blurred. Koncert sells four diallers under four brand names. Here is what each mode actually does, who it is for, and the trap that costs the most.
Two clarifications before you read on. Skipcall offers the power dialler and the parallel dialler on four lines, and does not offer a predictive dialler: that is a deliberate choice, for the legal reasons set out in the fourth card. Koncert, for its part, offers a click dialler, a sequential dialler, a parallel dialler and a dialler assisted by human agents, but no predictive dialler either.
For long cycles and named accounts
- Your list holds fewer than a hundred accounts per rep per month
- Every call needs preparation: the record, the last exchange, the latest news on the account
- A missed meeting costs you more than an hour of dialling time
The trap.Believing that slowness equals quality. On a broad, loosely qualified list, preparation does not change the pick up rate: it only reduces the number of attempts.
To remove dead time without changing your method
- Your reps spend more time dialling and waiting than talking
- Your list is clean: the numbers are valid and up to date
- You want to keep a single line per rep, for inbound as well as outbound
The trap.Expecting the power dialler to make up for a low pick up rate. It removes the wait between two calls, it does not create extra conversations.
For teams whose pick up rate has become the limiting factor
- Your pick up rate is stuck at around 3% and your volumes cannot rise any further
- Your reps accept being connected on the first pick up, without choosing who they speak to
- Your contact records are complete enough for a rep to get their bearings in two seconds
The trap.Raising the line count without limit. The more lines you run, the higher the chance that two people pick up at the same time, and the extra call is hung up.
For very high volume call centres, under regulatory constraint
- Dozens of agents work the same campaign, the condition for the statistical model to hold
- You are able to measure, record and justify your abandoned call rate
- Your activity can live with a recorded message playing when no agent is available
The trap.Confusing predictive with parallel. The predictive dialler calls more numbers than it has available agents and accepts abandoned calls: in the United States, federal regulation caps that rate at 3% of calls answered by a person, measured over thirty days and per campaign, and requires a recorded message identifying the caller within two seconds of the greeting.
Before you choose
The 5 questions that decide your dialling mode
Answer them before the first demonstration. They usually rule out two of the four modes, and make comparing tools far simpler.
- 01How many accounts must each rep touch per month, and is that volume sustainable by hand?
- 02What is your real pick up rate today, measured on your own calls rather than estimated?
- 03Will your reps accept being connected without knowing in advance who picks up?
- 04How many agents work the same campaign at the same time?
- 05Who, on your side, answers if your abandoned call rate and the information given to the people called are audited?
What do you actually need?
Three uses, three families of tools. Most bad choices come from confusing the first two.
Koncert belongs to the second family, the diallers designed for large teams working the North American market. That is where it is most relevant, and it also explains most of the gaps with a tool built for prospecting in France.
Who each solution is for
Koncert remains the right choice if
- your team works the North American market, where its users and its public reviews are concentrated
- you want a dialler assisted by human agents, who get past switchboards and voice menus on your behalf
- your volumes justify a sales cycle and a negotiated contract rather than off the shelf pricing
- your integrations run through Salesloft, Outreach, Gong or Apollo
An alternative makes sense if
- you want to know the price before opening a sales conversation
- hosting the data in Europe is a requirement from your legal department
- your reps call in France and you want a product and a support team in French
- you want to start with a single licence to measure the channel before scaling it
Frequently asked questions
What is the best Koncert alternative in 2026?+
There is no single answer: the right choice depends on the dialling mode you need and on the market you call. For an American team running very high volume, Orum and Nooks compare directly with Koncert. For a team calling in France, the alternatives built in Europe are Skipcall, Flunter and Minari, with data hosted in the European Union. The deciding criterion stays the same: how many lines you dial in parallel, and at what cost per conversation.
How much does Koncert cost?+
Koncert publishes no price. Its pricing page presents seven plans, from the Click Dialer to the Symphony+ packages, and each one leads to a contact form. Neither the price per licence, nor the minimum number of licences, nor the commitment period is shown as of 3 September 2026. Getting a budget therefore means going through a sales conversation.
How many lines does the Koncert parallel dialler run?+
The pricing page advertises 1 to 4 lines for the Symphony plan and 1 to 5 lines for Symphony+. The vendor FAQ states that 4 lines is “the default and recommended setting”, with the option to raise that number. The number of lines actually opened on an account is therefore a contractual matter, which makes it a point to get in writing.
Does Koncert offer a predictive dialler?+
No. The four diallers Koncert presents are the Click Dialer, the single line Flow Dialer, the multi line Parallel Dialer and the Agent-Assisted Dialer, the last one relying on human agents who dial and get past switchboards. No predictive dialler, in the sense of a system that statistically anticipates agent availability, appears in its range. Skipcall does not offer one either.
What is the difference between a parallel dialler and a predictive dialler?+
The parallel dialler runs a fixed number of lines per rep, four at Skipcall, and connects the rep on the first pick up: the other calls are hung up immediately, before any conversation. The predictive dialler calls more numbers than it has available agents, betting that some will not connect. When the model gets it wrong, the person who picks up has nobody on the line: that is an abandoned call. In the United States, federal regulation caps that rate at 3% of calls answered by a person, measured over thirty days and per campaign, and requires a recorded message identifying the caller within two seconds of the greeting.
Where is Koncert customer data hosted?+
The Koncert privacy policy states that each customer data set is logically partitioned and stored “in our data center”, without naming a country. The vendor states that it adheres to the EU-U.S. Data Privacy Framework, to its United Kingdom extension and to the Swiss framework, mechanisms that govern transfers of personal data from Europe to the United States. No European data centre is mentioned publicly.
Is Koncert GDPR compliant?+
Koncert advertises GDPR compliance and offers a data processing agreement on request. It is also SOC 2 Type II certified. Whether your own processing is compliant, on the other hand, is down to you: the lawful basis for the calls, the information given to the people called, the right to object and the retention period for recordings all remain the responsibility of the data controller, whichever tool you pick.
What is Koncert rated on G2?+
Koncert scores 4.6 out of 5 on G2, across 422 reviews, with a very concentrated distribution: 80% five star reviews and 17% four star reviews. On Capterra the rating is identical but rests on eight reviews. G2 also singled Koncert out in its 2026 reports, in particular for support quality and adoption rate.
What do users complain about with Koncert?+
Two points come up in public reviews. The first is a delayed connection: a gap between the moment the prospect picks up and the moment the rep is connected, a constraint inherent to multi line dialling. The second concerns slowdowns and glitches observed during very high volume sessions. To that, from a European buyer point of view, add the absence of public pricing and of a stated data location.
Which Koncert alternatives are built in Europe?+
Skipcall, Flunter and Minari are built in France. All three offer a parallel dialler, Skipcall on four lines with data hosted at Scaleway, in France. For a team calling French prospects, that anchoring changes two concrete things: the legal regime that applies to call recordings, and the language of the product and the support team.
Is there a Koncert alternative with public pricing?+
Yes. Skipcall publishes its four plans: Business VoIP at €15, Starter at €75, Intermediate at €150 and Expert at €280 per licence per month, with no minimum number of licences. You can therefore work out your budget and your cost per conversation before any sales conversation, which a quote based price list does not allow.
How long does it take to switch tools?+
Going live takes hours: importing the contacts, connecting the CRM, running the first call sequence. It is the contractual notice period and the number porting lead time that set the real timetable, not the technical part.
Also worth reading
Six analyses to refine your choice, from the vocabulary of diallers through to the criteria for selecting a tool.
Sources
Public data consulted on 3 September 2026.
- Koncert, pricing page · seven plans, no price shown
- Koncert, diallers page · the four dialling modes
- Koncert, FAQ · number of lines, CRM, SOC 2 Type II
- Koncert, privacy policy · data storage and Data Privacy Framework
- Koncert, home page · claimed track record and certifications
- Press release “ConnectLeader Rebrands to Koncert” · renaming of 20 April 2021, head office
- G2 · rating, volume and breakdown of reviews
- Capterra · rating and review volume
- CNIL, telephone prospecting in France · consent, information and right to object
- 47 CFR 64.1200, United States federal regulation · 3% cap on abandoned calls and the two second rule
Prices and ratings change. The figures above reflect the state of the public sources on the date shown. Koncert is a trademark of its publisher, cited here for the purposes of objective comparison.
Alternatives to the other vendors
The same work, vendor by vendor: company, hosting, public reviews, real pricing and what to check.
Trellus alternative In-call coaching, layered on another platform. Aircall alternative Business telephony, with no parallel dialling. 
Ringover alternative Full French telephony, limited dialling. CloudTalk alternative Parallel dialling offered as a paid add-on. JustCall alternative US vendor, sales offering priced on request. 
RingCentral alternative Enterprise suite with a fixed-term commitment. See all 24 alternative pages · all 24 vendors, each with the head to head and the alternatives page.
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