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Voice AI agents

AI voice agent development company for calls that get things done.

We build voice agents that answer inbound calls, run outbound follow-ups and replace rigid IVR menus, with low latency, natural speech, CRM write-back and a clean handoff to your team.

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Inbound and outbound

Agents that answer, qualify, book and follow up, then log every call in your CRM.

Human handoff built in

Calls transfer to a person with a short summary when the agent reaches its limits.

Your telephony, cloud

Twilio, Plivo or SIP with your numbers, deployed in the cloud and region you choose.

01

AI voice agent development services: inbound, outbound and IVR replacement

As an AI voice agent development company, we build agents that hold a real phone conversation: they listen, understand intent, look up the caller's details, take an action and confirm it out loud. Our AI voice agent development services cover inbound agents that answer every call, outbound agents that follow up on leads and appointments, and IVR replacement, where callers say what they need instead of pressing through a menu.

Each project includes conversation design, telephony setup, speech-to-text and voice tuning, CRM write-back, call recording and analytics, and escalation to humans. We decide early which calls the agent should handle end to end and which it should qualify and pass on, because that boundary shapes everything else.

  • Inbound: answer, qualify, route and book around the clock
  • Outbound: lead follow-up, reminders and confirmations
  • IVR replacement: natural-language routing instead of keypad menus
  • After the call: summaries, CRM updates and analytics
02

AI calling agents for sales and lead follow-up

Most sales teams can't call every new enquiry within minutes, at night or on weekends. An AI calling agent can call a new lead soon after the form is submitted, ask your qualification questions, answer common product questions and book a meeting straight into a rep's calendar. Qualified leads reach your team with a call summary; the rest get a polite, logged follow-up.

An AI voice agent for outbound calls only works if the call is welcome. We design scripts and logic around consent, calling windows, opt-out handling and clear disclosure that the caller is an AI, and keep a person in the loop for anything sensitive. Calls can be recorded and transcribed where permitted and written back to your CRM, so managers can review exactly what the agent said.

03

Latency, accents and human handoff

Voice is less forgiving than chat. A pause that feels fine in a chat window feels broken on a phone call, so we design for low latency end to end: streaming speech-to-text with Deepgram or Whisper, fast model routing, streaming voice synthesis with ElevenLabs, and turn-taking that handles interruptions. We measure response time on real test calls, not just in a lab setup.

Accents and languages need testing, not assumptions. We test transcription and voices on recordings that match your callers, including regional accents and mixed-language speech, before committing to a provider. When the agent is unsure, the caller asks for a person, or the topic is sensitive, the call transfers to your team with a short summary so nobody has to repeat themselves.

04

Telephony integration and consent rules

We integrate with the telephony you have or set it up for you: Twilio, Plivo or SIP trunks into your existing phone system, with your numbers and caller ID. The agent connects to your CRM, calendar and helpdesk to read context and write back outcomes, and follow-ups after a call can go out on WhatsApp through the official Business API.

Calling rules differ by country, and outbound AI calling usually depends on proper consent. We design flows around consent and local telecom rules, including calling hours, opt-outs, disclosure and record-keeping, and we recommend you confirm the final setup with your legal counsel.

05

AI voice agent development cost: what drives it

AI voice agent development cost is driven by call complexity, the number of systems the agent reads from and writes to, languages and accents, telephony setup, latency targets and the compliance controls your market requires. Running costs scale with call minutes across telephony, transcription, model and voice providers, and we estimate them from your call volumes before you commit.

The build is priced fixed per pilot or milestone and agreed before work starts, after a free 20-minute scoping call. A common start is a fixed-price pilot on one call type, such as inbound lead qualification or appointment reminders, measured against your current process. From there, a milestone-based build or a dedicated AI pod on a monthly retainer takes it further.

  • Call types and conversation complexity
  • Integrations with CRM, calendar, helpdesk and payments
  • Languages, accents and voice choices
  • Telephony setup, latency targets and compliance controls
06

Why work with our voice AI development company

Voice agents speak to your customers directly, so the details decide whether they help or hurt. We're a senior team in Gurugram, India, working remotely with companies worldwide, with a daily overlap with your working hours. The same engineers scope, build and run your agent. We've built telephony into our own products, including masked calling in the iSales CRM, and 100% of your code and IP stays yours.

How it works.

  1. 01

    Pick one call type

    A free 20-minute call to choose the first call type, review sample recordings and agree success measures.

  2. 02

    Design the conversation

    Scripts, intents, edge cases, handoff triggers and consent logic, reviewed with your team before build.

  3. 03

    Build and test calls

    Connect telephony and systems, tune speech and voice, and run test calls with a demo every week.

  4. 04

    Go live and review

    Launch on a share of real calls, review recordings and transcripts, then widen coverage step by step.

Technologies we use

  • Deepgram
  • Whisper
  • ElevenLabs
  • Twilio
  • Plivo
  • WhatsApp Business API
  • Claude
  • GPT
  • Node.js
  • Python
Engagement models

Three ways to begin.

Fixed scope · Fixed price

AI Pilot

Prove value on one high-impact workflow before you commit further.

  • — Discovery & success metrics
  • — One agent, core integrations
  • — Deployed in your cloud
  • — Evaluation report & roadmap
Milestone-based

Product Build

Design and ship a complete AI-native product, ready for launch.

  • — Product strategy & UX design
  • — Web, mobile or both
  • — AI features at the core
  • — Launch support & handover
Monthly retainer

Dedicated AI Pod

A senior team embedded with yours, working in your time zone.

  • — AI engineer, full-stack & PM
  • — Guaranteed daily overlap
  • — Weekly demos & reporting
  • — Scale up or down monthly
FAQ

Questions, answered.

Will callers know they're talking to an AI?

They should, and we design for it. The agent identifies itself as an automated assistant, sounds natural, handles interruptions and offers a person whenever the caller asks. Disclosure is a trust issue and, in many markets, a legal one, so we build it into the conversation design rather than leaving it to chance.

Can the voice agent speak other languages?

We build voice agents in English and other languages, and we test before committing. Transcription and voice quality vary by provider and dialect, so we run recordings that match your callers, including regional accents and mixed-language speech, through candidate providers and choose on measured results. If quality isn't good enough for a call type, we'll tell you.

What happens when the AI can't handle a call?

It transfers the call to a person, or books a callback, with a short summary of who called and what they need. We define the handoff triggers up front: low confidence, a direct request for a human, sensitive topics, or anything outside the agent's scope. Your team sees the transcript, so nobody repeats themselves.

Do you work with our existing phone system and CRM?

Usually, yes. We connect through Twilio, Plivo or SIP to your current numbers and phone system, and integrate with your CRM, calendar and helpdesk to read caller context and write back outcomes. If you don't have telephony in place, we set it up in your own account so you keep the numbers and the data.

How is the cost of an AI voice agent calculated?

There are two parts. The build is priced fixed per pilot or milestone, agreed before work starts after a scoping call. Running costs depend on call minutes across telephony, speech-to-text, the language model and voice synthesis. We estimate running costs from your call volumes up front and design routing to keep them in check.

Is outbound AI calling legal for our business?

It depends on your country, your contact lists and how consent was collected. Consent and telecom rules differ from one country to the next. We design flows around consent and local telecom rules, but we're engineers, not lawyers, so confirm the final setup with your counsel before launch.

Related services

Have calls your team can't keep up with?

Book a free 20-minute scoping call. Bring one call type and a few sample recordings, and we'll show how a voice agent would handle it.

Contact us