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Sales On Demand

AI Voice Agents

AI voice agents that answer every call for local service businesses.

If you run a plumbing, HVAC, solar, or other home-service business, a missed call is a missed job. We build AI voice agents on Vapi and SignalWire that pick up in under a second, qualify leads, book appointments straight to your calendar, and drop every call into your CRM — while you're on a job, asleep, or just have your hands full.

Sales On Demand builds AI voice agents for small businesses — an AI phone answering service that picks up inbound calls in under a second, runs automated lead-qualification calls (and outbound reactivation), books appointments straight to your calendar, and writes every call into your CRM. Built on Vapi and SignalWire, wired into GoHighLevel, available in English and Spanish.

How much does an AI voice agent cost?

You pay the platforms (Vapi, ~$0.05–0.15/min; SignalWire voice on top) directly at cost — a typical inbound agent handling 200 calls/month runs roughly $50–150/mo in usage. Our fee covers the build, configuration, and ongoing management. Full breakdown: how much an AI voice agent costs.

How does an AI voice agent qualify leads?

The agent runs a custom script — name, contact info, service need, timeline, budget — scores the lead, then either books the appointment live or routes the contact to your team with a note. See how an AI voice agent qualifies leads and why speed to lead is the whole point — Harvard Business Review's research on lead response time found firms that contact a lead within an hour are far likelier to qualify it.

Is an AI voice agent better than hiring an SDR or call center?

It depends on volume and the work. An agent doesn't sleep, doesn't churn, and costs a fraction of a salary — but a human still closes complex deals better. We help you draw that line: AI voice agent vs hiring an SDR and AI voice agent vs a call center.

Will an AI receptionist annoy my customers?

Done badly, yes. Done well, callers usually can't tell — and they'd rather talk to a competent agent now than a voicemail. We tune voice, cadence, and escalation per client: will an AI receptionist annoy my customers. On outbound, the FTC's Do Not Call rules and the TCPA govern automated calls — we build opt-out handling and disclosure into every outbound agent, and require clients to confirm their lists are compliant.

Use cases

Four things agents do that your team can't.

Namely: answer every call at 11pm, dial 300 old leads before 9am, and never take a sick day.

Inbound lead qualification

Every inbound call is answered in under a second. The agent collects name, contact info, service need, timeline, and budget — then routes based on qualification score or books directly to your calendar. No more leads lost to voicemail.

Outbound reactivation

Got a list of old leads that went cold? We build agents that dial them systematically, introduce your offer, and warm them back up for a human follow-up. Works for any business with a lead list that's gone quiet.

Appointment booking + reminders

The agent books to your GHL calendar in real time during the call — no transfer, no callback, no "we'll send you a link." Pre-appointment reminder calls are automated on the same system.

After-hours coverage

Most local service businesses lose leads between 6pm and 9am. An after-hours agent handles those calls exactly like a daytime agent: qualify, book, CRM — with a note flagging it as after-hours so your team has context in the morning.

The stack

Purpose-built voice infrastructure.

Vapi

LLM orchestration, TTS/STT, conversation management

Best-in-class latency for conversational voice. Sub-1s response times.

SignalWire

Voice infrastructure, phone number management, PSTN routing

Carrier-grade reliability. We use it where Twilio-based infrastructure adds cost or latency.

GoHighLevel

CRM, calendar, contact management, pipeline routing

Every call outcome writes directly to GHL — contact created, pipeline stage set, appointment booked.

Webhooks

Real-time routing, escalation triggers, team notifications

When the agent flags a call for escalation or a hot lead, your team knows in seconds via SMS or Slack.

Live deployments

11 agents live for clients across industries.

We've deployed 11 agents for clients across industries — each custom-trained on their business, not a template. Same infrastructure, completely different configuration for every client.

Every agent is built from scratch: the questions it asks, the objections it handles, how it routes qualified vs. unqualified leads, and the CRM workflows it triggers. They share infrastructure but nothing else.

What each agent covers

  • Custom qualification script for your specific offer
  • Inbound + outbound configurations available
  • Direct calendar booking during the call
  • CRM contact creation + pipeline routing
  • Escalation triggers for hot leads or upset callers
  • After-hours coverage, same as daytime

Bilingual

English and Spanish. Built in, not bolted on.

We build bilingual agents that detect language from the caller's first sentence and respond in kind — no menu prompt, no "press 2 for Spanish." The conversation flows in the language the caller is most comfortable in.

Spanish-language support isn't an add-on. It's standard configuration for any client serving a bilingual market. If your customers speak Spanish and you're not serving them in it, you're losing business to someone who is.

FAQ

Common questions

Does it sound like a robot? +
Current TTS quality on Vapi — especially ElevenLabs and PlayHT voices — is close enough to human that most callers don't immediately know. We test voices per client and tune cadence, filler usage, and response timing. Some callers figure it out; most don't until the agent tells them (which we configure based on your compliance needs).
Do you train the agent specifically for my business? +
Yes. Every agent is built from scratch with your company name, services, pricing (if applicable), FAQs, objection handling, and escalation paths. We don't copy-paste a template and call it done. The agent knows your business because we put your business into it.
Can it do outbound calling — and what about FCC compliance? +
Yes, we build outbound agents. For compliance: the TCPA requires prior express written consent for automated calls to mobile numbers. We require clients to confirm their lead lists are TCPA-compliant before any outbound campaign goes live. We don't provide legal advice, but we do build compliant opt-out handling and call disclosure language into every outbound agent.
What if the agent can't answer a question? +
It escalates. We define escalation triggers during build — topics it can't handle, keywords that signal an upset caller, or requests for a human. It can transfer the call live, send an SMS to your team, or schedule a callback. Nothing falls through the floor silently.
How much does it cost per call? +
Vapi charges by the minute (typically $0.05–0.15/min depending on LLM and voice). SignalWire voice infrastructure adds per-minute costs on top. We pass these through at cost — you pay the platforms directly. Our fees are for build, config, and ongoing management. A typical inbound agent handling 200 calls/month runs $50–150/mo in infrastructure, depending on average call length.

Hear a demo agent.

Book a strategy call and we'll walk you through a live agent demo built for your business. Bring your current phone workflow — we'll show you exactly where an AI agent would fit.