Koncert

What it is

Koncert is a family of outbound B2B dialers, not a single product. Two AI dialers carry the packaging: the AI Flow Dialer, a single-line power dialer the vendor markets at 5X the output of manual dialing, and the AI Parallel Dialer, which runs multiple lines and is marketed at 200+ dials per hour. Sitting beside them is the Agent-Assisted Dialer, where trained human agents work the phone trees, gatekeepers, and voicemail systems and hand the rep a live person — Koncert claims 125+ dials per hour per rep on it, and 200+ when the human agents dial in parallel. Four packages wrap those dialers: Melody and Melody+ (single line), Symphony (1 to 4 lines), and Symphony+ (1 to 5 lines). The company is private and based in Windham, New Hampshire, and was named a Leader in G2’s Spring and Summer 2026 reports for AI dialers.

One number is worth fixing before you shop: the parallel ceiling is 5 concurrent lines, on the top tier. The “10X” on Koncert’s pricing page is a productivity claim, not a line count, and it is easy to misread as a 10-line dialer.

Why it shows up in RevOps stacks

• Coaching sits inside the plan, not on the invoice as an add-on. Remote Salesfloor, live call listen and whisper, coaching notes, call blitz rooms, and the call library ship with every package; AI objection detection and AI summary notes land on the two ”+” tiers. Orum sells AI coaching as a paid add-on on every plan, which is the reason a coaching-conscious team should price Koncert before it prices Nooks.
• Human dialing agents are the escape hatch for gatekeeper-heavy lists. When your target accounts route through switchboards and IVRs, an AI dialer detects a human pickup and hands you the receptionist. The Agent-Assisted Dialer is the answer for that list shape, and no other tool in this segment ships one.
• Caller-ID health is managed and cheaply priced. Automated local presence, area-mapped caller IDs, and a usage heat map that flags over-used numbers before carriers flag them, with Twilio-backed number purchase at $1 per caller ID on the published promo terms.

Pricing reality

All four packages are quote-only — every card on the pricing page says “Get Pricing.” But Koncert publishes one real seat number its competitors don’t. Its Pipeline Accelerator offer prices the single-line AI Flow Dialer at $75 per seat per month for three months and states that this is 50% off the regular price, which puts list for the entry dialer at roughly $150 per seat per month: about $1,800 per seat per year, or about $5,400 per year at the 3-user minimum. That promo is US-only and B2B-only, includes up to 5,000 bonus parallel-dialer dials, and prices caller IDs at $1 each.

Symphony and Symphony+ — the parallel tiers, and the reason most teams look at Koncert — are never published. Third-party aggregators put full packages anywhere from $3,000 to $12,000 per user per year, and at least one quotes $800 to $2,000 per user per month; those figures disagree by roughly an order of magnitude, so don’t build a budget on them. Anchor on the $150 single-line seat, assume the parallel tiers quote above it, and get the number from a quote.

Best for

• Outbound SDR teams of roughly 3 to 25 reps that want parallel dialing and in-plan coaching without committing to a five-figure annual floor.
• Teams calling into gatekeeper-heavy or switchboard-heavy accounts, where the Agent-Assisted Dialer does work an AI dialer structurally can’t.

Don’t buy Koncert for a 1-2 rep team (the 3-seat minimum wastes it), for an inbound or PLG motion where reps aren’t cold-calling, or for a dial model that needs 8 to 10 concurrent lines — the product tops out at 5.

Versus the alternatives

Orum is the top alternative by share and the pick when line count is the binding constraint: Launch lists near $250/user/month on an annual commit with a 3-seat minimum and up to 5 lines, and Ascend pushes to 10. Pick Orum when you need more than 5 lines or want the largest install base; pick Koncert when you want parallel dialing plus coaching below Orum’s seat price.

Nooks is the bundling play — dialer, coaching, and an AI prospector in one tool — at a quote-based floor near $25,000/year for 5 seats. Pick Nooks when the salesfloor, scorecards, and prospecting all get daily use; pick Koncert when the coaching you actually need is live listen, whisper, and a call library, and you won’t pay a 4-5X floor for the rest of the bundle.

Trellus is the fastest-growing entrant: low-cost real-time coaching that bolts onto the dialer you already run. Pick Trellus when you want AI nudges without replacing the dial stack at all. If none of the four fit — small team, low volume, no appetite for an annual commit — use the single-line power dialer already inside Salesloft or Outreach and revisit at higher dial volume.

Watch-outs

• Five lines is the ceiling, and the marketing reads like ten. Symphony caps at 4 lines and Symphony+ at 5; “10X” is a productivity multiplier. Guard: get the concurrent-line cap written into the quote, and if your throughput model assumes 8 to 10 lines, price Orum Ascend instead.
• The one published price is a promotion, not a rate. A three-month offer at 50% off means month four doubles. Guard: require the post-promo renewal rate in the same document as the promo rate before you sign anything.
• Five dialer types is a real learning curve. Reviewers consistently cite time-to-master across the dialer lineup and the setup of call-routing rules. Guard: standardize on one dialer per team for the first quarter and scope the Agent-Assisted Dialer to one named target list rather than the whole book.
• Parallel dialing trades connect quality for volume. Stale numbers drag connect rates down, and when two prospects answer at once, one hears dead air. Guard: verify numbers before a session, cap lines at 3 when list quality is unknown, and track connects-per-hour rather than raw dials.
• No public API, webhooks, or MCP server is documented. Integration is CRM-sync-shaped — a native Salesforce app with bi-directional sync, plus HubSpot, Outreach, Salesloft, Apollo, Gong, and Slack. Guard: if you need call data in a warehouse or an agent, confirm export and webhook availability in the evaluation, not after the contract.