AI & Automation

Voice AI Development

Voice AI lets a system have a real phone conversation — answering inbound calls, making outbound calls, or replacing a traditional IVR menu — using speech recognition, an LLM for conversation logic, and text-to-speech for the reply, all in near real time. We build voice bots for appointment booking, lead qualification and call deflection.

Discuss Your Project Read FAQs

How It Works

What's inside a voice AI system

A voice AI pipeline chains together three components in real time: speech-to-text to transcribe what the caller says, an LLM to understand intent and decide the response (often calling your APIs mid-call, e.g. to check a slot or an order), and text-to-speech to reply naturally — all within a latency budget low enough that the conversation doesn't feel like talking to a machine on a delay.

Speech-to-text

Real-time transcription tuned for phone-call audio quality and interruptions.

Conversation logic

An LLM-driven dialogue flow that can branch, ask clarifying questions, and call tools mid-call.

Natural text-to-speech

Low-latency, natural-sounding voice output so the call doesn't feel robotic or laggy.

Our Process

How we build a voice bot

Call flow design

Map the conversation paths a real call takes, including objections, interruptions, and "I want to speak to a human."

Voice & telephony setup

Choose a telephony provider and voice model, and connect the number to your existing systems (CRM, calendar, order DB).

Build & tune latency

Build the pipeline and tune response time — latency is the single biggest factor in whether a voice bot feels usable.

Test with real calls

Run test calls covering accents, background noise, and edge cases before going live, with a clear human-handoff path.

Use Cases

Where voice AI is used today

Appointment booking

An AI receptionist that answers calls, checks calendar availability, and books, reschedules or cancels appointments.

HealthcareEducation

Outbound lead calling

Places qualifying calls to inbound leads at scale, and routes qualified ones straight to a sales rep's calendar.

Real EstateCoaching Institutes

IVR replacement

Replaces "press 1 for billing" menus with a conversational agent that understands the actual request in one sentence.

TelecomBFSI

Technology Stack

Tools we build voice AI with

Twilio Deepgram ElevenLabs GPT-4o Realtime WebRTC Python FastAPI

Benefits

Why teams add voice AI

Handles call volume outside business hours without adding headcount to a call center.

Consistent qualifying questions on every call — no rep skipping steps under pressure.

Every call is transcribed and logged automatically, feeding directly into your CRM.

Scales instantly during demand spikes without hiring or training delays.

Related Case Studies

Voice AI we've shipped

Real deployments

AI calling agent for real estate → Voice bot for a coaching institute → IVR replacement for a telecom provider → Appointment booking for a clinic →

FAQs

Frequently asked questions

What is voice AI?

Voice AI is a system that holds a real phone conversation using speech-to-text, an LLM for conversation logic, and text-to-speech for the reply, letting a bot answer or place calls in near real time.

Does a voice bot sound robotic?

Modern text-to-speech models sound natural in most cases; the bigger factor in how "robotic" a call feels is latency — long pauses break the illusion faster than voice quality does, which is why we tune latency specifically.

Can voice AI integrate with our calendar or CRM?

Yes — the agent can check calendar availability, book or reschedule appointments, and log call outcomes directly into your CRM mid-call.

What happens if the caller wants a human?

Every voice bot we build includes a clear handoff path — the caller can ask for a human at any point and get transferred with full call context.

How much does voice AI development cost?

It depends on call volume, the complexity of the conversation flow, and how many systems it needs to integrate with. A single-purpose bot (e.g. appointment booking) costs less than a full IVR replacement.

Which languages can the voice bot handle?

We build in English and Hindi as standard, and can support other Indian regional languages depending on the speech and voice models available for that language.

Related Services

Explore related AI & Automation services

Missing calls, or answering the same questions all day?

Let's scope a voice bot for your busiest call flow.

Request a Project Estimate

Get Free Consultation