Voice solutions designed to assist your team - not replace their role.
Remote AI Voice Agent Development for USA A Dedicated Developer, Hourly or Monthly
An AI phone agent, AI receptionist, or AI answering service that answers and makes real calls, books, qualifies, and supports - built by a remote dedicated developer for $25/hr or $2,000/mo on US morning overlap, W-8BEN-E provided.
AI Voice Agents From Empiric Infotech LLP
Empiric Infotech LLP builds and runs AI voice agents for US businesses - clinics and dental groups, home-services companies, real-estate teams, agencies, SaaS support desks - as a dedicated-developer engagement: one remote developer (or a small dedicated team) full-time and exclusively on your AI phone agent, AI receptionist, AI answering service, or outbound caller, in your GitHub or GitLab org, your telephony account, and your cloud, month after month, on a US morning overlap window. We wire up the telephony (Twilio, Telnyx, or your SIP trunk and US numbers), the real-time voice layer (Vapi, Retell AI, Bland, LiveKit, Pipecat), STT (Deepgram, AssemblyAI, Whisper), TTS (ElevenLabs, Cartesia, Rime, OpenAI), an LLM brain (Claude, GPT, Gemini) that follows your script and calls your tools, integrations to your CRM, calendar, and helpdesk, inbound and outbound flows, a clean transfer-to-human path, and recordings, transcripts, and analytics - then tune the latency, interruption handling, and voicemail detection until it sounds like a person. A senior team lead reviews and tests every change. The engagement is billed two ways - $25 an hour or the standard $2,000 a month per developer - in USD with a W-8BEN-E on file, a 7-day risk-free trial on the monthly plan, and you scale a developer at a time.
What an AI voice agent engagement delivers for a US business
Not a demo that handles one happy path. A voice agent live on your US phone numbers - inbound and outbound, integrated with your CRM and calendar, with a transfer-to-human path, recordings, transcripts, and analytics - plus the developer who keeps tuning and extending it on your hours.
A voice agent live on your US phone numbers
Wired into Twilio, Telnyx, or your SIP trunk, on your US numbers, taking real inbound calls and placing real outbound ones - the AI receptionist for the front desk and after-hours, the answering service that never sends a caller to voicemail, the outbound agent for reminders and follow-ups. Your telephony account, not ours; A2P 10DLC registration and STIR/SHAKEN handled.
A brain that follows your script and calls your tools
An LLM (Claude, GPT, or Gemini) prompted and constrained to your call flows, policies, and tone, with function calling to look up an order, check availability, book or reschedule an appointment, create a ticket, update a record, send a confirmation text. A voice agent, not a phone menu.
Real-time voice that sounds like a person
Vapi, Retell AI, Bland, LiveKit, or Pipecat with STT (Deepgram, AssemblyAI, Whisper) and TTS (ElevenLabs, Cartesia, Rime, OpenAI), tuned: sub-second latency, natural interruption and barge-in handling, backchannels, voicemail detection on outbound, a voice you sign off on. The difference between a caller staying on the line and hanging up.
Integrations to your CRM, calendar, and helpdesk
Salesforce, HubSpot, GoHighLevel, Pipedrive, Calendly / Acuity / Cal.com / your scheduler, Zendesk / Intercom / Freshdesk, your booking or PMS system - read and write, two-way - so a call updates your systems and a record can trigger a call.
Inbound, outbound, and a clean handoff to a human
Inbound: answer, identify, resolve or route. Outbound: campaigns, reminders, surveys, win-backs, qualification calls, with TCPA-aware opt-out handling and do-not-call respect. And a warm transfer-to-human path with context, business-hours awareness, and graceful fallback.
Recordings, transcripts, analytics, and a backend
Every call recorded and transcribed, tagged by outcome, with dashboards on volume, containment, transfer rate, booking rate, and unanswered questions - plus the orchestration backend (Node.js or Python), webhooks, outbound campaign queues, and rate and concurrency limits.
A developer who is still there when the model changes
Voice AI moves fast. A dedicated engagement means the same developer tunes the agent, adds the next call flow, and keeps it current, month after month, on your US morning overlap, instead of handing you a v1 that drifts.
How we scope an AI voice agent engagement
No multi-week procurement dance and no twenty-page SOW. A call, a written scope, a trial, then a monthly engagement you can end any time.
A scoping call (US-friendly slot)
Thirty to forty-five minutes on a US morning or afternoon slot. You walk us through the calls you want handled, your call volume, your telephony setup, the systems it touches, and your tone. No charge, no obligation.
A written scope and team proposal
We send back the first call flows, the platform and voice stack, the integrations, who we would put on it, and the flat monthly price in USD. We will tell you honestly if a no-code platform configured by you would do the job.
A 7-day risk-free trial
The developer gets into your telephony account and cloud and ships the priority inbound flow - taking real calls on a test US number, integrated, transferring to a human cleanly - inside the first week, reviewed and tested by the senior lead. Not a fit by day 7, full refund, no debate.
Hourly or monthly, your choice
Hourly: billed by the hour at $25 in USD with a W-8BEN-E on file, time tracked to the minute, a weekly time report and a demo, stop any time - best for a defined scope or burst work. Monthly: 160-172 hours at the standard $2,000, monthly billing in USD, cancel with 7 days notice - the better value when the agent is a rolling thing. Switch between them month to month as the use cases grow or settle; add a developer (or a designer for a dashboard) at the same rate.
Two ways to engage an AI voice agent developer
Two ways to engage a remote AI voice agent developer, billed in USD with a W-8BEN-E on file. By the hour at $25 - pay as you go, time tracked to the minute, a weekly report and demo, no monthly commitment - best for a defined scope (a priority inbound flow, an outbound qualification campaign, TCPA/A2P 10DLC compliance work) or burst work. Or monthly at the standard $2,000 for 160-172 hours of full-time, exclusive work on US morning overlap - the better value when the agent is a rolling thing with more flows, Spanish, and patient edge-case tuning, with a 7-day risk-free trial. Either way: your repo, your US telephony account, your US cloud, A2P 10DLC and STIR/SHAKEN handled, and a senior lead reviews and tests every release. Why the hourly premium? AI voice agents are real-time, latency-sensitive systems with telephony, STT/TTS, an LLM brain, and TCPA compliance - expert-level work in short bursts; the monthly rate is the same flat rate as any Empiric engagement once you commit. Per-minute platform, telephony, STT/TTS, and model usage is billed to your own accounts at cost.
Hourly plan
- A dedicated AI voice agent developer, exclusive to you while you have hours booked
- Pay as you go - billed by the hour in USD, time tracked to the minute, a weekly report and demo
- Best for a defined scope (priority flow, single outbound campaign, TCPA/A2P 10DLC work); no monthly commitment, stop any time
- Your repo, US telephony, US cloud, and model keys from day one; W-8BEN-E provided
- Every release reviewed and tested by a senior lead before it goes live
Monthly plan
- A dedicated AI voice agent developer, full-time and exclusive - 160-172 hours a month on US morning overlap
- The best value when the agent is a rolling thing - more flows, Spanish, outbound, edge cases
- Your repo, US telephony, and US cloud from day one; the same flat rate as any Empiric engagement
- 7-day risk-free trial, monthly billing in USD, cancel with 7 days notice; W-8BEN-E provided
- A senior lead reviews and tests every release before it goes live
Dedicated team
- A small dedicated team - developers plus a senior team lead who reviews and tests every release
- Add a developer (or a designer for a dashboard) at the same rate, in 48 hours
- Pair an inbound developer with an outbound/campaign developer to ship parallel use cases
- Best for several live US numbers, bilingual flows, or running inbound and outbound at once
What the first 90 days look like for a US business
A dedicated engagement is a rolling thing, not a Gantt chart - but here is the shape of the first three months, all on US morning overlap.
- Week 1
Onboarding and the trial flow
Telephony and cloud access, a working dev environment, the platform and voice stack chosen, A2P 10DLC and STIR/SHAKEN sorted, and the priority inbound flow live on a test US number - identifying the caller, answering common questions, calling one tool, warm-transferring to a human - shipped and reviewed. Day 7 is the decision point.
- Month 1
The main flow, live on your numbers
The priority use case in production on your real US numbers - inbound reception, after-hours answering, or appointment booking - integrated with your CRM and calendar, transfer-to-human working, recordings and transcripts captured, latency and interruption handling tuned, a basic dashboard live. A real voice agent taking real calls.
- Month 2
More flows, outbound, and the rough edges
Secondary inbound flows, outbound (reminders, follow-ups, qualification) with voicemail detection, TCPA-aware opt-outs, and campaign queueing, more integrations, a second voice or Spanish if you need it, and the edge cases real callers surfaced - smoothed, with analytics tightened.
- Month 3
Hardening, scale, and ahead of the roadmap
Concurrency and rate limits for peak volume, a cost pass on per-minute spend, a quality pass on transcripts and transfer reasons, compliance handling (recording disclosure, opt-outs, do-not-call), and the next use case scoped. From here the developer is ahead of your backlog.
A monthly dedicated developer vs configuring a voice-AI platform yourself, a fixed-price voice-AI agency, or a US in-house build
| Empiric Infotech (monthly dedicated developer) | Configure a voice-AI platform yourself (Vapi, Retell, Bland, Synthflow) | Fixed-price voice-AI agency | Hire a US engineer in-house | |
|---|---|---|---|---|
| What you actually get | A custom voice agent built and tuned to your call flows, integrated with your systems, owned by you - and a developer who keeps improving it | A dashboard and a generic agent you prompt yourself; integrations and edge cases on you | A v1 built to a spec, then a maintenance retainer or you are on your own | Whatever your team can build alongside their other work |
| Pricing model | $25/hr for hourly work, or the standard $2,000/mo for a full-time developer if you lock a month; platform/telephony usage billed to your accounts at cost | Platform subscription + per-minute usage; your time to build and maintain | $10K-$50K fixed bid for a v1 agent; change orders billed extra | $140K-$190K salary + ~30% loaded - and hard to hire |
| Integrations (CRM, calendar, helpdesk) | Built and maintained for you - read and write, two-way | Whatever the platform ships, plus what you wire yourself | Built to the spec; new ones are change orders | Yours to build and keep working |
| Latency, interruption, voicemail tuning | Tuned by a developer until it sounds human; revisited as models change | Platform defaults; tuning knobs you learn yourself | Tuned at delivery; drifts unless you pay for revisions | As good as your team's time allows |
| Quality control | Senior-lead code review + pre-delivery testing on every release, built in | On you | Per agency - often the same juniors who wrote it | Your own review process, if you have one |
| Compliance (recording disclosure, TCPA, opt-outs) | Built in and flagged for your use case and state; A2P 10DLC handled | On you to configure and stay on top of | Built at delivery; your problem to maintain | Yours to handle |
| Time to start | 48 hours | Hours to set up; weeks to make it production-grade yourself | 2-6 weeks (proposal, SOW, kickoff) | 2-5 months in a tight AI-hiring market |
| Time-zone overlap | 1 hr live US-East morning + most of a day shipped before you wake; PM into your afternoon | n/a (you build it) | Per agency | Same time zone (once you have hired) |
Figures are typical US market ranges, not quotes. Per-minute platform, telephony, STT/TTS, and model costs apply on top of any build cost in every option and are billed to your own accounts in ours. A fixed-price agency build of a comparable v1 voice agent commonly lands in the $10K-$50K range before change orders.
Working hours and US overlap
Our team works 09:30 AM - 07:30 PM IST and a project manager is on call 07:30 AM - 10:30 PM IST, Monday to Friday. Here is exactly when that lands for clients in the US, Europe and Australia, your region first.
US Eastern (New York, Boston, Atlanta) - full team online 12:00 AM - 10:00 AM, project manager 10:00 PM - 1:00 PM (next day).Live cover across the edges of your day, your morning and your evening, with a project manager who replies the same business day.
US Pacific (Los Angeles, San Francisco, Seattle) - full team online 9:00 PM - 7:00 AM (next day), project manager 7:00 PM - 10:00 AM (next day).We are online through your evening and overnight, and your project manager sets live calls in your morning so you are never blocked.
UK & Ireland (London, Dublin) - full team online 5:00 AM - 3:00 PM, project manager 3:00 AM - 6:00 PM.
Central Europe (Berlin, Paris, Amsterdam, Madrid) - full team online 6:00 AM - 4:00 PM, project manager 4:00 AM - 7:00 PM.
Australia East (Sydney, Melbourne, Brisbane) - full team online 2:00 PM - 12:00 AM (next day), project manager 12:00 PM - 3:00 AM (next day).
Want it to the half-hour in your own time? Slide through your day and book a slot below.
Why US teams build their AI voice agent with a dedicated developer, not a no-code platform alone
A voice-AI platform (Vapi, Retell, Bland, Synthflow) is a great runtime - but a great runtime is not a great agent. The work that decides whether callers stay on the line is the call-flow design, the prompt and tool wiring, the CRM and calendar integration, the latency and interruption tuning, the transfer-to-human path, the compliance handling (recording disclosure, TCPA, opt-outs, A2P 10DLC), the analytics, and the patient iteration as real callers surface edge cases. That work is a developer's job. Empiric Infotech is billed two ways - $25 an hour for a defined scope, or the standard $2,000 a month per developer for 160-172 hours of it, full-time and exclusive - in USD with a W-8BEN-E on file, with the same person on your agent the next month, and a senior lead reviewing and testing every release at no extra cost.
A fixed-price voice-AI agency build typically runs $10,000 to $50,000 for a v1, then a maintenance retainer - and a voice agent that is not maintained drifts: a model update changes its behaviour, a caller finds a path it does not handle, an integration breaks, a compliance rule changes. A no-code platform configured once and left alone drifts the same way, and the integrations and edge cases were on you to begin with. A dedicated Empiric developer is still there in month nine, has built voice agents on the major platforms, works on your US morning overlap, and tunes the agent as the models and your call patterns change.
We have built real-time and conversational systems into products - chat, live feeds, notifications, LLM features - and shipped web and mobile products since 2014. The depth shows up in the parts a quickstart skips: a transfer path that warm-transfers with context instead of dumping the caller, voicemail detection that does not waste an outbound slot, latency tuned per turn, recording disclosure and opt-out handling that survives a compliance question, and the honesty to tell you when a configured platform would do the job without us.
Recent AI, real-time, and product work
Roamate - real-time conversational features in a travel platform
A solo travel companion platform built for a USA founder by a two-person Empiric Infotech team - the Flutter app, the web surface, real-time chat and social feed, and the APIs behind them. The kind of real-time, conversational engineering a voice agent sits on top of.
Read case studySuperintelligence - an AI product engineered end to end
An AI product built for a USA client by an Empiric Infotech team - the application, the model integration, and the backend behind it - the LLM-and-tooling work that a voice agent's brain is built from.
Read case studyVelvet Passport - a product team's engineering partner
A consumer product built for a USA client by an Empiric Infotech team - the app, the backend, and the integrations - the kind of dedicated, month-after-month engagement an AI voice agent engagement runs as.
Read case studyReady to build your AI voice agent?
Tell us the calls you want handled - inbound reception, after-hours answering, appointment booking, lead qualification, outbound reminders - your call volume, your telephony setup, and the systems it needs to touch. Within 24 hours we will send back the first call flows, a platform and voice-stack proposal, the integrations, a team proposal, and a flat monthly price in USD. Your developer starts inside 48 hours on your morning overlap, and a senior lead reviews and tests everything before it reaches you.
Who We Help:
For Teams Who Want Voice Automation That Actually
Works
We work with CX, ops, and product leaders who are tired of clunky IVRs and want scalable voice solutions that feel natural and deliver value.
This Is for You If:
You're stuck with outdated IVR systems that frustrate users
Your support or onboarding team is overwhelmed by repetitive voice queries
You want to extend LLM-powered intelligence into your phone or WhatsApp workflows
You need voice experiences that speak multiple languages and understand context
You're looking for scalable, privacy-respecting solutions that integrate with your stack

What We Do
We Build AI Agents Human-Like Voice Interfaces That Scale
From design to deployment, we build voice agents that understand, respond, and act - just like a skilled team member would.
What We Build:
Voice IVRs that go beyond routing - they resolve
Multilingual AI agents for WhatsApp, phone, and apps
Smart appointment scheduling, lead qualification, and onboarding
Voice-first support agents that handle FAQs, triage, and follow-ups
Real-time voice-to-CRM updates, call summaries, and escalations
Tools & Platforms We Use:
We’re platform-agnostic - if it can be automated, we’ll make it happen.
Where AI Agents Make a Measurable Impact

Sales & Lead Response
Instant replies, qualification, calendar booking - without human delay
Built with: n8n, Make, Zapier, and custom API orchestration

Customer Support
Triage queries, update CRMs, generate tickets, escalate intelligently
Powered by: Chat-GPT, LangChain, OpenAI, Gemini

Voice IVR Agents
Smart, conversational IVRs that solve, not just redirect
Tech behind the scenes: OCR, LLMs, vector search, Pinecone

Internal Operations
Generate reports, clean data, run daily workflows on command
Built using: Twilio, Vapi, Retell AI, Telegram, OpenAI

Knowledge Retrieval
Instantly surface SOPs, docs, and product info with citations
Integrated into: Notion, Data Studio, PowerBI, and more
Our Step-by-Step Process for AI Agent Development at Scale
A Systematic Process to
Launch Voice AI That Works
We don’t just deploy tools - we build voice systems that reflect your operations, logic, and goals.
Industries We Serve
Voice Agents for Any Industry - Built to Scale
We tailor voice interfaces to your sector’s unique needs, regulations, and user flows.
Industries We Serve:

SaaS & Startups
Voice onboarding, support, internal ops

E-commerce
Order updates, returns, product discovery

HR & Recruitment
Candidate screening, interview scheduling

Healthcare
Appointment scheduling, patient intake, reminders

Logistics
Dispatch updates, delivery confirmations

Travel
Booking updates, itinerary changes, support
If your operations feel too complex for templates, you're in the right place.
Why Empiric for Voice Agents
Why TeamsTrust Empiric for Voice AI
We combine technical depth with product thinking - so your voice agents actually drive business impact.
Our Approach:

Voice-first UX: Context-aware, human-like conversations
Our voice agents pull in real-time data from your systems to drive natural, context-rich dialogues that feel truly human.

Multi-channel delivery: WhatsApp, phone, app, web
Deploy a single voice agent across all touchpoints-calls, chat apps, mobile/web interfaces-while keeping a unified conversational brain.

Self-hosting & compliance options for full control
Run your voice agents on-prem or in your VPC, with built-in privacy controls and audit logs to meet any regulatory or security requirement.

Fast, pilot-first delivery with tangible ROI
Get a live voice pilot in days, test with real customers or agents, and track hard metrics-revenue lift, handle time reduction, satisfaction scores.

Post-launch support & iteration
Continuous monitoring, fine-tuning, and language expansion so your voice agent keeps improving and scales with your business needs.

Analytics & Insights Dashboard
Real-time call analytics, sentiment tracking, and performance metrics to empower data-driven optimizations of your voice agents.
Tools We Integrate - Built Around Your Stack, Not Ours
Agnostic. Conversation-First Aligned to Your Stack.
We architect AI agents as the central intelligence in your ecosystem, plugging into your existing data sources, APIs, and workflows. Whether you’re leveraging open-source models, enterprise platforms, or a hybrid stack, our solutions adapt to your tech environment-delivering a unified, scalable system without forcing you into a one-size-fits-all toolchain.
What We Work With:
AI & Language Models
Automation Platforms
AI Frameworks
Voice & Communication
Backend & Database

OpenAI

Claude

Gemini

Mistral

Meta LLaMA
We’ll design a setup that fits your compliance and control needs.
Why Businesses Choose Empiric Infotech LLP?
Compliance & Security
Voice Automation with Enterprise-Grade Security
What We Deliver:

GDPR-compliant voice data handling

Self-hosted options for LLMs and voice platforms

RBAC, call logging, and secure integrations

Configurable data retention policies
Built for teams that need voice AI - without compromising control.
Let’s Build the Smart System Your
Business Deserves
FAQs
Answers to Common Questions - From Founders, Ops Teams & Tech Leads
Frequently asked questions
Inbound: AI receptionists for the front desk and after-hours, AI answering services that never send a caller to voicemail, support agents for order status and account questions, and appointment booking and rescheduling for clinics, dental groups, salons, and home-services companies. Outbound: reminder and follow-up calls, lead qualification (real estate, agencies, B2B), surveys, win-backs, collections reminders, all with TCPA-aware opt-out handling. And IVR replacements that swap a phone menu for a conversation.
Two ways, billed in USD with a W-8BEN-E on file. By the hour at $25 - pay as you go, time tracked to the minute, a weekly report and demo, no monthly commitment - best for a defined scope like a priority inbound flow, a single outbound campaign, or TCPA/A2P 10DLC compliance work. Or monthly at the standard $2,000 USD per dedicated developer for 160-172 hours of full-time, exclusive work on your voice agent, in your repo, US telephony account, and US cloud, on US morning overlap, with a 7-day risk-free trial - the better value when the agent is a rolling thing with more flows, Spanish, and patient edge-case tuning. Either way: a senior lead reviews and tests every release. The monthly rate is the same flat rate as every other Empiric Infotech engagement; no premium for the voice framing. Per-minute platform, telephony, STT/TTS, and model usage is billed to your own accounts at cost. Add a developer at the same flat rate for more flows or a second use case.
The real-time voice platforms - Vapi, Retell AI, Bland, LiveKit, Pipecat - with telephony via Twilio, Telnyx, or your own SIP trunk (A2P 10DLC and STIR/SHAKEN handled), STT from Deepgram, AssemblyAI, or Whisper, TTS from ElevenLabs, Cartesia, Rime, or OpenAI, and an LLM brain (Claude, GPT, or Gemini). We pick the stack to fit your latency, language, cost, and integration needs, and tell you honestly which suits your case.
Yes - that is most of the value. Salesforce, HubSpot, GoHighLevel, Pipedrive, Calendly / Acuity / Cal.com / your scheduler, Zendesk, Intercom, Freshdesk, your booking or PMS system - read and write, two-way - so a call updates your systems and a record can trigger a call. Custom internal APIs too, via function calling or an MCP server (see /services/mcp-server-development).
We tune for it: sub-second response latency, natural interruption and barge-in handling, backchannels, a voice and persona you sign off on, voicemail detection on outbound. It will not pass a Turing test, but it will keep a caller on the line and get the job done - and when a caller wants a human, it warm-transfers with context, not into a queue.
If your need is a single simple flow and you have the time to learn the platform, configure the integrations, and maintain it, a no-code platform may be enough - and we will say so on the scoping call. A dedicated developer is the right call when you need real integrations, multiple or complex flows, outbound campaigns, careful latency and transfer tuning, compliance handling, analytics, and someone who keeps it working as the models change. We build it in your accounts; you own it and can run it without us.
We build in call-recording disclosure (mindful of two-party-consent states), do-not-call and opt-out handling on outbound, business-hours respect, consent capture, and A2P 10DLC registration with your carrier - and keep recordings and transcripts in your storage. We are not your compliance counsel, but the agent is built so a compliance review has something sensible to look at, and we will flag the obvious requirements for your use case and state.
Yes - the orchestration backend (Node.js or Python), the webhooks, the outbound campaign queues, the rate and concurrency limits, and a dashboard on call volume, containment, transfer rate, booking rate, and unanswered questions. If the dashboard needs real design work, we add a designer at the same flat per-developer rate.
You do - your GitHub or GitLab org, your Twilio/Telnyx account, your US phone numbers, your cloud account, your platform account, from day one. We work inside your accounts, not ours, so there is nothing to claw back if the engagement ends and no usage spend hidden in our invoice.
Within 48 hours of sign-off: a scoping call on a US-friendly slot, a written scope and team proposal, then onboarding - your telephony account, your cloud, a working dev environment - on day one. The first 7 days are a risk-free trial with a full refund if it is not a fit and a no-cost developer swap inside that window. After that, monthly billing in USD with 7 days notice to stop - no auto-renewal, no minimum term.
GET A QUOTE NOW
Tell us about your challenges, and we’ll come up with a viable solution!















