AI Voice Agents That Ship

Voice AI

Production-grade phone agents on Twilio, OpenAI, and ElevenLabs — sub-2-second latency, real CRM integrations, full compliance.

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Most AI voice demos sound great in a conference room and fall apart on a real customer call. We've spent the last two years shipping voice agents that actually answer, qualify, book, and route inbound and outbound calls in production for healthcare, B2B SaaS, and mid-market services companies.

Whether you need to stop missing after-hours calls, replace a $400/seat answering service, or scale outbound prospecting without growing the SDR team, we design, build, and operate the entire voice stack — telephony, STT, LLM reasoning, TTS, CRM integration, and compliance — as one engineered system.

Why teams hire us for this

The four things you'll get from a Niche.dev engagement on voice ai.

24/7 inbound coverage

Capture every lead at 2 AM, on holidays, during peak hours. AI answers in under a second, qualifies the caller, and books or routes — no voicemails, no missed revenue.

Outbound at human-quality, machine scale

Hundreds of personalized calls per hour, with real voicemail detection (97%+ accuracy) and warm-transfer to human reps only when prospects engage live.

Real CRM and PMS integration

We don't ship a chatbot bolted to a phone line. The agent reads from and writes to your Salesforce, HubSpot, AthenaHealth, or whatever you actually run on.

Compliance built in

TCPA-compliant outbound flows, HIPAA-eligible architectures, full call recording with PII redaction, and audit trails ready for your legal team.

What we build

Concrete systems we've shipped in this space. Not a roadmap — production deployments.

Real numbers, real production

Aggregate metrics from Niche.dev voice ai deployments.

92%

Inbound calls handled without humans

3x

Average lead-capture lift

<2s

End-to-end response latency

10K+

Daily call concurrency in production

How an engagement runs

Predictable, milestone-based, no open-ended retainers. You see real progress every two weeks.

Call audit

We listen to your existing calls (with consent) for 1–2 weeks, build a taxonomy of intents and edge cases, and benchmark current handle-time and miss-rate.

Pilot agent

Two-week sprint to a working agent on a sandbox number, integrated with one CRM/PMS path. You hear it work end-to-end before we touch production traffic.

Production rollout

Phased cutover — first off-hours, then peak hours, then full traffic. Monitoring dashboards, fallback to human, and a rollback button on day one.

Continuous tuning

Monthly call reviews, prompt updates, and new-intent additions as your business evolves. Average client adds 3–5 new agent capabilities per quarter.

The stack we work in

We bring opinions but we meet you where you are. These are the tools we use most for voice ai.

Twilio Programmable Voice OpenAI GPT-4 / GPT-4o ElevenLabs TTS Deepgram / Whisper STT Python Redis PostgreSQL Salesforce / HubSpot APIs AthenaHealth / DrChrono APIs

Real voice ai we've shipped

Every one of these is a production system. Click through for the full case study.

Frequently asked questions

The questions every prospect asks before working with us.

How is this different from an off-the-shelf AI receptionist product?
Off-the-shelf tools are great for a generic 'press-1-for-sales' replacement. We build custom voice agents that integrate with your specific CRM, EHR, or PMS, follow your industry's compliance rules, and handle your real-world call patterns. The result handles 90%+ of calls instead of 30–40%.
How long does a deployment take?
Two weeks to a working pilot on a sandbox number. Three to six weeks to full production cutover, depending on integration complexity and call volume.
What does it cost vs. a human receptionist?
Per-call costs are typically $0.15–$0.40 depending on duration and TTS provider. A full-time receptionist runs ~$3K–$5K/month loaded; an answering service is ~$1.50–$3 per call. AI hits break-even quickly above ~50 calls/day and scales with no marginal cost.
Will it sound like a robot?
No. We use ElevenLabs or comparable neural TTS with voice cloning options, sub-2-second response times, and natural barge-in handling. In our deployments, fewer than 10% of callers realize they're speaking to AI.
Is it HIPAA / TCPA compliant?
Yes. We architect every healthcare deployment with BAA-covered providers and PHI redaction. For outbound, we build TCPA-compliant consent flows, DNC list integration, and full audit logging. We've shipped both into regulated environments.

Stop missing calls. Start booking business.

Tell us about your call volume, your stack, and what you're trying to solve. We'll send back a 1-page architecture sketch and a realistic 2-week pilot plan within 24 hours.

Email Nick directly