Koncert vs PhoneBurner (2026)
For a team that wants to dial several lines at once or hand gatekeepers and phone trees to human operators, Koncert is the better match, while PhoneBurner suits reps who work one call at a time and buyers who want every rate on the page. Koncert sells the AI Parallel dialer on up to four or five lines, the AI Flow single line dialer, an agent assisted dialer whose operators navigate menus and gatekeepers before transferring a live prospect, and a click to call dialer, alongside Koncert Cadence, an AI voice agent and managed caller ID health with a usage heat map. PhoneBurner declines multi line and predictive dialing over dropped call risk and wraps a CRM, dispositions, voicemail drops and live coaching around a single line session. Koncert names Melody, Symphony, Melody+ and Symphony+ and prices them on request, while PhoneBurner prints $140 to $183 a user a month on annual billing. On data, Koncert's privacy policy keeps customer information no longer than 30 days after the contract ends, and PhoneBurner keeps recordings for 30 days, 90 days or indefinitely by plan.
- Gatekeepers and phone trees take more time than the conversations, so human operators should reach the prospect before transferring the call.
- High volume prospecting needs a parallel dialer on up to five lines, with Melody plans for single line follow up.
- Managers want caller ID health managed for them, with a heat map of how hard each number is used.
- The team wants a single line dialer that never drops a call and a vendor that refuses predictive dialing on compliance grounds.
- Budget approval needs a printed price: $140, $165 or $183 a user a month on annual billing.
- The team wants a CRM, dispositions, follow up cadences and lead distribution bundled with the dialer.
This comparison is published by GTM Tech Index, an independent research platform that compares go to market software vendors objectively. Koncert and PhoneBurner are each graded against the same capability taxonomy, from each vendor's own public materials, under the GTM Tech Index verification standard. No vendor pays for placement, and no vendor has reviewed this page. How this evidence is graded
Plain facts
| Koncert | PhoneBurner | |
|---|---|---|
| Primary category | Dialers & Voice | Dialers & Voice |
| Founded | Not published | Not published |
| Headquarters | Windham, New Hampshire, United States | Not published |
| Website | www.koncert.com | www.phoneburner.com |
Side by Side
| Axis | K Koncert |
P PhoneBurner |
|---|---|---|
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AI Capability
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| AI Centrality | ||
| Autonomy and Oversight Model | ||
| AI Disclosure and Model Transparency | ||
| Operational and Outcome Evidence | ||
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Compliance and Risk
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| Outreach Compliance Posture | ||
| Data Privacy Posture | ||
| Data Licensing and Provenance | ||
| Platform Terms Exposure | ||
| AI Safety and Data Stewardship | ||
| Recipient Disclosure and Authenticity | ||
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Integration and Deployment
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| Ecosystem and Integration Depth | ||
| Deployment Model and Data Residency | ||
| Security Certifications and Trust Center | ||
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Commercial and Operational
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| Commercial Transparency | ||
| Exit and Data Portability | ||
| Deliverability and Sending Discipline | ||
| Segment and Market Coverage | ||
The short version of each
Koncert
Koncert splits outbound calling into separate dialers: the AI Parallel dialer on up to four or five lines, the single line AI Flow dialer, an agent assisted dialer where human operators get past phone trees and gatekeepers before a live transfer, and click to call. Around them sit Koncert Cadence for phone, email, video and social steps, Koncert Phone, DataGenie waterfall enrichment, an AI voice agent that books meetings and managed caller ID health with a usage heat map. The GTM Tech Index grades Koncert A on exit and data portability, since its privacy policy lets customers export data during the term and deletes it 30 days after the agreement ends or 10 days after a deletion request. Plans named Melody, Symphony, Melody+ and Symphony+ are priced only on request, and the vendor is certified under the EU, UK and Swiss data privacy frameworks.
Source: GTM Tech Index, 2026
PhoneBurner
PhoneBurner keeps one rep on one call at a time, refusing multi line and predictive dialing because dropped calls carry TCPA and Telemarketing Sales Rule exposure. Around the session it adds a CRM, follow up cadences, one click voicemail drops, lead distribution and live dashboards, with call monitoring and coaching from Professional. Plans run $140, $165 and $183 per seat on yearly billing and $165 to $215 billed monthly, with no setup fee; recordings are kept 30 days, 90 days or indefinitely by plan, and imports run from 10,000 to 50,000 contacts a month. ARMOR spam remediation, PhoneBurner numbers and Connect Scores are add ons without a price. PhoneBurner holds A on outreach compliance in the GTM Tech Index for enforcing the customer's own suppression list at the dialer and integrating national registry screening through a separate compliance subscription.
Source: GTM Tech Index, 2026
Common questions
How do Koncert and PhoneBurner price their dialers?
PhoneBurner prints three plans at $140, $165 and $183 a user a month on annual billing, or $165 to $215 monthly, with no setup fee and add ons for numbers, ARMOR and Connect Scores that carry no price. Koncert names four plans, Melody, Symphony, Melody+ and Symphony+, and prices each through a form that asks for location and how many reps make calls. PhoneBurner therefore holds B on commercial transparency in the GTM Tech Index, against C for Koncert.
Can Koncert get past phone trees and gatekeepers before connecting a rep?
Yes. Koncert's agent assisted dialer uses human operators to navigate phone trees, gatekeepers and voicemail systems and transfers the call once a live prospect answers, and its AI Parallel dialer rings several lines while avoiding simultaneous calls to more than one number for the same prospect. PhoneBurner has no equivalent; it dials one number at a time and leaves navigation to the rep, with voicemail drops for unanswered calls. For those published limits the GTM Tech Index puts Koncert at B on autonomy and oversight, one grade above PhoneBurner.
What happens to call data when leaving Koncert or PhoneBurner?
Koncert's privacy policy lets a customer modify, delete and export its data during the term, then keeps it until 30 days after the agreement ends or 10 days after a deletion request, whichever comes first, and its application can find and delete one person's data on request. PhoneBurner keeps recordings for 30 days on Standard and 90 on Professional, so older calls are gone before a customer leaves unless it is on Premium, and its open API starts on Professional. The GTM Tech Index grades Koncert A and PhoneBurner C on exit and data portability.
Which dialer is safer under the TCPA, Koncert or PhoneBurner?
PhoneBurner builds its case on architecture: no multi line or predictive dialing, so no dropped calls, and a customer's do not call list enforced at the dialer, with national registry screening through a separate compliance vendor. Koncert dials up to five lines on Symphony+, manages caller ID reputation and publishes a dedicated TCPA page that walks through the autodialer definition and the Supreme Court's Duguid ruling. The GTM Tech Index grades PhoneBurner A and Koncert B on outreach compliance posture.
Do Koncert and PhoneBurner hold SOC 2 reports?
Both do. PhoneBurner states SOC 2 Type II and PCI DSS compliance in its trust center, releases the reports on request and names AWS among its subprocessors. Koncert lists SOC 2 Type II, TCPA and GDPR pages in its trust and compliance footer, publishes a vulnerability disclosure page and holds certification under the EU, UK and Swiss data privacy frameworks. Both hold B on security certifications and trust center in the GTM Tech Index.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the Dialers & Voice page.
Both products manage caller identity to lift answer rates, Koncert through managed caller ID health and automated local presence and PhoneBurner through ARMOR and local presence, and neither tells the person answering how the number was chosen. Koncert's agent assisted dialer puts human operators on the line before the seller joins, and PhoneBurner's voicemail drops leave a prerecorded message in the rep's voice. Koncert is based in Windham, New Hampshire.