Guide · Call Tracking
For a high-call-volume HVAC company, the cheapest call tracking is still the plan with almost no base fee
CallTrackingMetrics' $0.02/min is a transcription rate, not talk time — its calls meter at $0.04, half a cent under the zero-base plans — so at 10,000 minutes a month Dialics and WhatConverts still win at $450, and the one cheaper minute left in the field doesn't overtake them until about 16,000. WildJar, which used to share that rate, now meters at $0.10.
A busy HVAC line in peak season doesn’t generate calls, it generates minutes — long booking calls, dispatch confirmations, after-hours overflow. Every platform in this category bills a flat monthly base plus metered usage, so “which is cheapest” looks like it should collapse to one number: the marginal per-minute rate, with the base rounding to noise. It doesn’t, because at the buyable end of this market the rate barely moves. Published local rates cluster between $0.04 and $0.055 a minute, with CallRail’s entry allotment at $0.06, Convirza’s Starter at $0.08 and WildJar’s Growth/Agency plan at $0.10 outside that band — and half a cent of difference takes tens of thousands of minutes to repay a monthly base. At 10,000 local minutes a month the cheapest platforms in our dataset are the two that barely charge a base at all: Dialics’ zero-base pay-as-you-go and WhatConverts’ $30/mo Call Tracking plan, tied at $450.
One figure decides the shape of that answer, and it is the one most easily misread. CallTrackingMetrics’ $0.02/min is transcription, not talk time. Call minutes on CTM meter at a single platform-wide $0.04/min across Marketing Lite, Marketing Pro and Sales Engage, and the 3,000 transcribed minutes attached to Marketing Pro are counted per sub-account and, per CTM’s own page, do not renew each month — so they are neither a monthly bundle nor talk minutes. CTM is half a cent under the cheap end of the field on usage, not half of it, and the cheapest way onto that $0.04 rate is Marketing Lite at $79/mo month-to-month, not the $179 tier.
Here is what 10,000 local talk-minutes a month costs, cheapest first, using each vendor’s lowest-cost plan at this volume — and, where a vendor sells its rate by the allotment you buy, the allotment that comes out cheapest here.
| Vendor | Plan | Base | Local rate | Cost @ 10,000 min |
|---|---|---|---|---|
| Dialics | Pay As You Go | $0 | $0.045/min | $450 |
| WhatConverts | Call Tracking | $30* | $0.045/min | $450 |
| CallTrackingMetrics | Marketing Lite | $79 m-t-m | $0.04/min | $479 |
| CallRail | Lead Tracking, 1,000-min allotment | $95 m-t-m | $0.05/min | $545 |
| Convirza | Agency | $149 | $0.05/min | $649 |
| Ringba | Business | $147 m-t-m | $0.055/min | $697 |
| WildJar | Growth/Agency | $89 | $0.10/min | $1,089 |
*WhatConverts’ $30 base is offset by its $30 usage credit, so its line is effectively the raw $0.045/min; its own table states the plan tracks “Up to 148” phone-call leads, a ceiling an HVAC line clears inside a week, and this row assumes the calls past it simply meter at the platform-wide rate rather than force a tier change. CTM’s row is Marketing Lite because the $0.04/min is identical on every CTM tier — Marketing Pro’s $179 buys sub-accounts, AskAI and HIPAA, not cheaper minutes, and lands at $579 here. Ringba’s row is Business rather than Professional because $147 + $0.055/min beats $297 + $0.05/min until about 30,000 minutes. CallRail’s rate is set by the allotment you buy, not by the platform, so its row is the cheapest rung of its own ladder at this volume — Lead Tracking with 10 local numbers and 1,000 local minutes at $95/mo month-to-month ($85 billed annually), with the remaining 9,000 minutes metered at $0.05. Every other rung costs more here: the 250-minute entry allotment ($55/mo month-to-month, $50 annually, $0.06/min) comes to $640, the 750-minute rung ($75/mo, $0.06/min) to $630, and even the 4,000-minute rung carrying CallRail’s lowest published rate ($295/mo month-to-month, $265 annually, $0.045/min) to $565 — its extra base does not earn back the half-cent until about 14,000 minutes a month. Three priced vendors are absent because a minutes workload cannot price them: Nimbata and Infinity bill per call rather than per minute (and Nimbata never publishes its per-call rate), and Mediahawk publishes openly but in pounds only, so it has no dollar figure for the last column. WildJar’s row is its Growth/Agency plan because that is the only WildJar plan whose bill can be computed at this volume: Starter’s $150/mo buys 4 tracking numbers, 500 minutes and AI transcription, and WildJar publishes no rate past those 500 minutes and says nothing at all about what happens when they run out. An HVAC line doing 10,000 minutes exhausts that allowance on about the second day of the month, and there is no published figure covering the remaining 9,500 — so Starter cannot honestly be costed for this buyer. The Growth/Agency row is minutes only, like every other row here; WildJar also charges $8.50/mo per local tracking number, the dearest per-number fee on this board.
The trap is a wide rate, not a low base
WhatConverts opens at $30/mo and Convirza’s Starter at $29/mo — the two cheapest named plans in the set, once you set aside Dialics’ zero-base pay-as-you-go — and only one of them is a trap. Convirza Starter meters at $0.08/min; at 10,000 minutes that $29 base sits underneath an $800 usage bill, for $829 all in. WhatConverts’ $30 sits on $0.045/min and ties for the win. Only one line on this board costs more than Convirza Starter does, and it fails in exactly the same way: WildJar’s Growth/Agency plan pairs an $89 base with $0.10/min, the highest published local rate on this board, for $1,089. So the rule isn’t “the base is noise” — it’s that a rate at twice the field’s swamps any base, while a rate half a cent under it does not. Convirza’s own ladder shows the shape: paying $120 more a month to move from Starter’s $0.08 to Agency’s $0.05 saves $180 at this volume and breaks even at 4,000 minutes, because that gap is three cents, not half of one.
Where the crossovers actually sit
The marginal-rate argument isn’t wrong, it’s slow. Three comparisons decide the answer for an HVAC buyer, and only two of them cross:
- CTM Marketing Lite ($79 + $0.04/min) versus Dialics ($0 + $0.045/min): they tie at 15,800 minutes — $711 each. Below that the zero base wins; above it the half-cent does. The same line holds against WhatConverts, whose usage credit makes it effectively a zero-base $0.045/min plan.
- WildJar Growth/Agency ($89 + $0.10/min) versus anything: there is no crossover left to find. Its base is higher than Dialics’ and its minute is more than twice Dialics’ $0.045, so it starts behind and loses a further 5.5 cents every minute — $1,089 against $450 at 10,000 minutes. Against CTM Marketing Lite the gap is $10 of base plus six cents a minute, or $610 here. This is the row that changed shape rather than moved: WildJar’s cheap entry tier is gone, and the $89 plan that remains buys a whitelabel agency platform, not cheap minutes.
- CallRail against itself: its 1,000-minute allotment ($95, $0.05/min) is the cheapest CallRail rung until roughly 14,000 minutes, where the 4,000-minute allotment ($295, $0.045/min) takes over.
Annual billing moves those lines without crossing them. CTM Marketing Lite is about $65/mo billed annually, which brings 10,000 minutes to roughly $465 — still above the $450 charged by two vendors that publish no annual discount to beat, because Dialics is pure pay-as-you-go and WhatConverts’ page has no monthly/annual toggle at all. WildJar has no annual rate to move either — the words annual, yearly and per year appear nowhere on its pricing page, and its FAQ states monthly subscriptions only, billed in arrears.
The compliance footnote that no longer aligns
HVAC isn’t healthcare, so this is a tiebreaker rather than a gate — but the plans that win on cost here are not the plans that carry a compliance posture. Three of the vendors priced above state one at all: CallRail (HIPAA and a BAA, though the BAA arrives through a separate, sales-gated Healthcare account rather than the self-serve tiers), CallTrackingMetrics (HIPAA offered on Marketing Pro and higher — the $179 tier, not the $79 one that places third in the table above), and WhatConverts (its comparison table ticks HIPAA from the Pro tier up, at $100/mo, with no BAA mentioned anywhere on the page). Dialics, WildJar, Convirza and Ringba publish nothing either way. So if a property-management or home-health adjacency ever brings PHI into the call, the cheapest column and the compliant column stop being the same column, and the tier you need costs more than the tier you priced.
How to read this
The cheapest call tracking for a high-volume HVAC company at 10,000 local minutes a month is Dialics’ zero-base pay-as-you-go or WhatConverts’ $30 plan, both landing at $450 — and the reason is that the rate spread underneath them is half a cent, not the order of magnitude you get by reading CTM’s $0.02 transcription charge as a call rate. Push past roughly 16,000 minutes and CallTrackingMetrics’ Marketing Lite ($79 + $0.04/min) takes the lead — on its own now, because WildJar no longer sells a four-cent minute to shadow it; past 30,000, Ringba’s Professional finally beats its own Business tier. Below all of that, every dollar of base fee is real money and the rate is the rounding error. The exact rates are what let us draw those lines, which is why we publish the workload and the source behind every figure rather than a single “starts at” number that tells a high-volume buyer nothing.