Written By Research Team
AI Outbound Calling
Fact Checked
Cost model sourced to BLS wage data and published vendor rates
Updated
Solar sells on a consultation, and the entire funnel exists to produce qualified in-home or virtual appointments. Appointment setting is high-volume, heavily scripted, and the most litigated telemarketing activity of the last decade.
What It Actually Costs To Run This Manually
The cost comparison, with sources
A human agent is paid for every minute they are on shift. An AI agent is billed only for minutes it is actually on a connected call. That difference — not the headline hourly rate — is where the saving comes from, and it means the honest comparison depends entirely on your agent utilisation.
Human agent
$21.53/hour
$0.36 per minute of paid time — whether or not anyone answers.
US median wage for Customer Service Representatives, $44,770/year (BLS, 2025). Wage only — excludes payroll tax, benefits, software, supervision and facilities.
AI agent
$0.05–$0.50/min
Per minute of connected call. Cheapest published rate: Vapi at $0.05. Most expensive: TheLeadRouter at $0.50.
Published voice rates from the 6 platforms in our review that disclose one. Several bill model, telephony or transcription costs on top — see each review for the all-in figure. The other 8platforms publish no per-minute voice rate at all.
Effective human cost per minute of live conversation
| If agents are on live calls… | Cost per talk-minute | vs AI at $0.05/min |
|---|---|---|
| 20% of paid time | $1.79 | 36× the AI rate |
| 35% of paid time | $1.03 | 21× the AI rate |
| 50% of paid time | $0.72 | 14× the AI rate |
How to read this: utilisation is the share of paid time an agent spends in live conversation, after dialling, no-answers, voicemails, wrap-up and breaks. Use your own figure — we deliberately do not publish an industry average, because it varies enormously by list quality and dialler type. The AI column is not free either: it excludes build time, telephony and the human handling every transfer the agent passes on.
Where The Cost Comes Out
Cost reduction in this industry is not a single number. It comes from three or four specific places, and knowing which apply to you determines whether a deployment pays back.
Appointment setting without a setter floor
Setter teams are the largest controllable cost in residential solar customer acquisition.
Confirmation calls that reduce no-show rate
A consultant driving to a no-show is the most expensive failure in the funnel.
Reviving aged lead files
Aged solar files are effectively free inventory at a low enough per-contact cost.
Where The Predictability Comes From
The cost argument gets the attention, but operators who have run this for a while tend to say the bigger win is variance removal. US employers post roughly 289,500 customer-service openings a year largely to replace turnover, and the occupation is projected to shrink 5% through 2035 (BLS, 2025) — staffing a phone line is getting harder, not easier.
Consistent qualification on roof, ownership and credit posture
Consultant time stops being wasted on structurally unqualified households.
Appointment volume becomes a capacity decision
Setting capacity is purchased rather than recruited, so the consultant calendar can be planned.
What To Automate, What To Keep Human
The deployments that fail are almost always the ones that automated a conversation requiring judgement. The line below is where we would draw it in this industry.
Hand to an agent
- Qualification on homeownership, roof suitability and credit posture
- Setting consultations
- Appointment confirmation and reminder calls
- Aged-lead reactivation
Keep with a person
- Savings estimates and system sizing
- Financing terms
- Anything involving incentives or tax credits
Best Practices
Assume every purchased lead's consent will be challenged
Solar telemarketing has produced a large volume of TCPA class actions, and purchased-lead consent is frequently indefensible. Verify provenance per record and keep the evidence.
Never let the agent estimate savings
Savings claims are the core of solar enforcement actions. The agent qualifies and books; a consultant models savings.
Confirm appointments aggressively
The economics of this vertical live and die on no-show rate. Confirmation is often a bigger win than setting volume.
Use a platform with documented DNC scrubbing
Given the litigation history, treat DNC and consent tooling as a hard requirement rather than a feature comparison.
Planning a rollout in solar?
Tell us your call volume and compliance requirements and we'll tell you which platforms in our ranking actually qualify — including the ones whose seat minimums rule you out.
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Compliance Exposure
Solar telemarketing has produced a large volume of TCPA class actions. Purchased-lead consent is frequently challenged and often indefensible. Use a platform with documented DNC scrubbing and keep consent audit trails per record.
General information, not legal advice. Consult counsel before running outbound campaigns in a regulated vertical.
A Rollout Sequence That Works
Order matters more than platform choice. Every step below is chosen so that the previous one has already proven the agent can be trusted with the next.
Audit consent provenance on your existing lead sources
Deploy on inbound and freshly-consented records only
Add confirmation calls before expanding setting volume
Consider aged-file reactivation only after a consent review
Platforms We Would Shortlist
Chosen for fit with this industry's specific requirements, drawn from ourscored ranking.
- 61B−ConvosoReview
A mature predictive dialer with the outbound compliance tooling AI-native vendors often lack.
- 64BRegal AIReview
Serious high-volume outbound with TCPA tooling — for contact centres of 25 agents and up.
- 87A−JustCallReview
A mature, fully-priced sales phone system that added a credible AI voice agent.
Featured Partner · Our Company
iTheLeadRouter
Scored 87/100 · Ranked #2Lead distribution, call routing and TCPA consent infrastructure — with AI dialing built in.
- The most transparent pricing in this review — every service has a published per-unit rate
- One $147/mo plan includes every feature, with no tier-gating of compliance tools
- Consent evidence stored on the lead record with DNC checks and an audit trail
- Ping-post, waterfall routing and RTB for buyer delivery that voice platforms do not offer
Ownership disclosure: AI Outbound Calling and TheLeadRouter are owned by the same company. This is a paid placement by us. TheLeadRouter is also scored on the same published rubric as every other platform — it earned 87/100 and ranks #2 on merit, not because we own it.