AI Voice Agent
Lead conversion is a footrace. The contractor who actually connects on a phone call within five minutes wins three times more often than the one who calls back in an hour. An AI voice agent on NZ Leads dials new Yelp, Thumbtack, Facebook, and Google LSA leads within 60 seconds, qualifies them, and books the appointment — while you are still mid-job.
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What is an AI voice agent?
An AI voice agent is software that places phone calls and holds natural spoken conversations. It pulls together three pieces in real time: speech-to-text to hear the prospect, a large language model to decide what to say, and text-to-speech to speak back. The result feels like a trained sales or service rep on the line — except it dials in seconds, runs 24/7, and never forgets to ask the qualifying questions.
For a service business, the voice agent is doing two jobs simultaneously:
- Outbound: calling fresh leads from Yelp, Thumbtack, Facebook Lead Ads, Google LSA, and other lead platforms within seconds of arrival.
- Inbound: answering your business phone for prospects calling you directly.
How does an AI voice agent work?
The pipeline runs in under a second per turn:
- The prospect's audio is transcribed in real time.
- A reasoning model reads the transcript plus your knowledge base (services, pricing, hours, service area, FAQs) and decides the next response or action.
- The response is rendered to natural speech and streamed back, with end-to-end round-trip latency under 700ms.
- In parallel, the agent writes to your CRM, books on your calendar, sends confirmation SMS, and pings your phone with a job summary.
For outbound calls the agent triggers from a lead event: a new Yelp Request a Quote arrives, a Thumbtack lead drops, a Facebook Lead Ads form submits — within 30-90 seconds the agent is dialing. The prospect picks up while they are still researching contractors, often before they have called anyone else.
AI voice agent vs human call center
Most service business owners weigh AI voice against three alternatives. Pricing comparison for 200 outbound calls per month, average 90 seconds each:
| Option | Pricing model | Monthly cost (200 calls) | Speed-to-first-dial | Books jobs? |
|---|---|---|---|---|
| In-house sales rep | Salary + commission | $3,500-$6,000 | 5-30 min (best case) | Yes |
| Offshore call center | Per-seat or per-hour | $800-$1,800 | 10-60 min | Limited (script only) |
| Pay-per-minute answering service | Per-minute | $300-$600 | Inbound only | Sometimes (extra fee) |
| AI voice agent (NZ Leads) | $10/mo number + $1/min | $310 | 30-90 seconds | Yes (real calendar integration) |
The dollar gap is meaningful. The speed gap is bigger. Speed-to-lead is the single highest-leverage variable in service business marketing — and only AI realistically delivers sub-2-minute dials at any scale.
AI voice agent for outbound lead calls
Outbound is where the AI voice agent earns its keep. The dispatch flow on NZ Leads:
- A new Yelp / Thumbtack / Facebook / Google LSA lead arrives.
- The agent acknowledges immediately by SMS ("Hey [name], saw your request — calling you in 30 seconds").
- The agent dials. If the prospect answers, it qualifies (service needed, address, urgency, budget signals) and books.
- If the prospect does not answer, the agent leaves a voicemail and queues retries with intelligent timing.
- If the prospect texts back instead of calling, the AI auto-responder handles the SMS thread.
The compounding effect is significant. In our customer cohort, contractors who turn on outbound AI voice on Yelp leads typically see Yelp ROI roughly double within the first 60 days, because the same ad spend now produces meaningfully more booked jobs.
AI voice agent for inbound calls
The same agent answers your business phone. Pickup time is under two rings, the conversation flows naturally, and the agent handles unlimited concurrent calls — so you never get a busy signal during a heat wave or a storm. See the dedicated AI receptionist guide for the inbound side.
AI voice agent for Yelp leads
Yelp leads are time-sensitive. Yelp's own data shows businesses that respond inside 5 minutes win at roughly triple the rate of those that take an hour. The AI voice agent dials Yelp leads inside 90 seconds — usually before the prospect has finished reading the next contractor's profile.
AI voice agent for Thumbtack leads
Thumbtack charges per lead, sometimes $40-80 each for service categories. Letting paid leads sit unanswered for 30 minutes is throwing money in the trash. The AI voice agent dials the moment the lead drops, qualifies, and books. Cost-per-booked-job typically falls 30-50% in the first month after activation.
AI voice agent for Facebook Lead Ads
Facebook Lead Ads produce volume — and the leads cool fast because the prospect was scrolling, not actively searching. Speed matters even more here than on intent platforms. The voice agent dials inside a minute, while the prospect still remembers filling out the form.
AI voice agent for Google LSA leads
Google Local Services Ads pass calls and messages directly. Google rewards advertisers with high responsiveness and good outcomes by ranking them higher in the LSA carousel. An AI voice agent maintains 24/7 coverage and consistent handling, which directly improves both your booked-job rate and your LSA placement.
AI voice agent pricing
NZ Leads voice agent pricing is pay-as-you-go:
- $10/month per phone number
- $1/minute for actual call time
- No per-call fee, no per-seat fee, no minimum
- 7-day free trial with full voice agent access included
Worked example: a contractor pulling 30 Yelp leads per month plus 50 inbound calls, average 90 seconds each, runs ~120 minutes total — about $130/month all-in for two-way voice on a single number.
Batch calling and campaign dialer
Beyond per-lead dialing, the same voice agent runs campaigns. Upload a CSV (cold leads, dormant customers, expired estimates), set the script and qualifying questions, and the dialer works through the list at natural pacing. Common campaign types:
- Reactivate cold leads from the past 90 days
- Annual maintenance reminders (HVAC, plumbing service plans)
- Quote follow-ups for stalled deals
- Win-back outreach to lapsed customers
How to set up an AI voice agent
- Sign up and pick a number. Create an account at app.nzleads.com and provision a dedicated voice agent phone number ($10/mo).
- Connect your lead sources. Authorize Yelp, Thumbtack, Facebook, Google LSA, and any other lead platforms you use.
- Build the voice agent persona. Configure greeting, voice, qualifying questions, and your service-business knowledge base.
- Set outbound triggers. Define which lead sources should trigger an immediate outbound call.
- Configure transfer rules. Set escalation triggers and the cell numbers for live transfers.
- Test and launch. Send a test lead through, listen to the recording, refine the prompts, then enable on real leads.
What to look for in the best AI voice agent
- Sub-1-second turn latency. Slower agents feel robotic and prospects hang up.
- Multi-platform lead-source integration. Yelp, Thumbtack, Facebook, Google LSA at minimum.
- Real outbound triggers. Not "we send you a Slack message" — actual auto-dial inside the first 90 seconds.
- Calendar booking with availability check. Booking blind without availability data produces double-bookings and angry customers.
- Recording, transcript, disposition. Every call should be reviewable and dispositioned for analytics.
- Live transfer with context. Warm handoff with a transcript summary, not a cold drop.
Frequently asked questions
What is an AI voice agent?
An AI voice agent is a software phone caller that can place outbound calls and handle inbound calls in natural conversation. It uses speech-to-text, a large language model for reasoning, and real-time text-to-speech to talk like a trained sales or service rep.
How is an AI voice agent different from an AI receptionist?
A receptionist primarily handles inbound calls. A voice agent does both: outbound dials to fresh leads within seconds of arrival, plus inbound coverage. On NZ Leads the same voice agent handles both directions on the same number.
How fast does an AI voice agent dial new leads?
Within seconds. When a Yelp, Thumbtack, Facebook, or Google LSA lead arrives in the platform, the voice agent dials within 30-90 seconds. Most human teams take 30+ minutes to call back, and lead conversion drops sharply after the first 5 minutes.
Can an AI voice agent run cold call campaigns?
Yes. The batch dialer pulls a CSV or CRM segment, queues the calls, and works through the list at human-like pacing with disposition logging. Common uses: reactivating cold leads, win-back campaigns, appointment reminders, and follow-up on stalled estimates.
How natural does the AI voice sound?
Natural enough that most callers do not realize. Latency is under 1 second, the voice handles interruptions, and tone adjusts to context. We use enterprise-grade TTS with multiple voice options including male, female, and accent variations.
What does an AI voice agent cost?
NZ Leads charges $10/month per phone number plus $1/minute pay-as-you-go. There is no per-call fee, no per-seat fee, and no contract. A typical service business spends $80-200/month all-in for both inbound and outbound voice.
Will the voice agent transfer calls to me?
Yes. You configure transfer rules: emergency keywords, high-value job indicators, or simply caller request. The transfer is a warm handoff with a brief context summary, so you do not have to ask the prospect to repeat anything.
Can the voice agent book appointments directly?
Yes. It checks Google Calendar or Microsoft 365 in real time, books the slot, and sends confirmation texts. For dispatch businesses it can also create a job in your CRM with the captured details (address, problem description, urgency).
Does the voice agent work on mobile networks?
The voice agent makes and receives calls over standard phone numbers, so callers reach it from any landline or mobile. Audio quality is the same as a normal call. The AI itself runs in the cloud, no app or hardware required.
Can I use my own phone number?
Yes. Either port your existing business number to NZ Leads, or keep it where it is and forward inbound calls to a NZ Leads number. Outbound calls can display your existing business number via caller ID.
Does the AI voice agent handle Spanish?
Yes. The agent auto-detects caller language and switches to Spanish without breaking context mid-call. English and Spanish are supported today.
How do I know if the AI is doing a good job?
Every call is recorded and transcribed. The dashboard shows pickup rate, average call length, qualification accuracy, booking rate, and live transfer rate. You can listen to any call and refine the knowledge base or persona based on what you hear.
Related guides
Deeper reading on specific AI voice agent topics:
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