Skip to content
HHussain C

05Service

Voice AI agents

Phone and voice agents that answer calls, book appointments and qualify leads, and pass the call to a person when they should.

EmailWhatsAppSend a brief

The short answer

Updated

A voice AI agent is a phone or voice assistant that listens, understands and talks back in real time, and can act on the call, like booking a slot or updating your CRM. I build them on Twilio, Vapi, LiveKit and OpenAI Realtime, usually in 4 to 8 weeks for $8k to $25k.

Typical budget
$8k to $25k
Timeline
4 to 8 weeks to production
How it's quoted
Call minutes, phone numbers and voice model usage are separate.

A voice on the phone that knows when to pass the call on.

Voice is harder than chat. People interrupt, mumble, change their mind halfway through a sentence, and hang up if the pause runs long. A good voice agent has to answer in under a second and still get the details right.

So I keep its job narrow: handle the common calls, collect what's needed, take one or two actions, and transfer to a person the moment the call goes off script. Every call is recorded and transcribed, so you can see exactly what it said.

A good fit if

What you get

How a project runs

  1. Week 1

    Listen

    Go through real call recordings, pick the calls worth automating, and agree where the agent's job ends.

  2. Weeks 2 to 4

    First calls

    The agent on a test number, called by your team until it holds up.

  3. Weeks 5 to 6

    Go live

    A share of real calls with a person on standby, then more as it earns trust.

  4. Ongoing

    Tune

    Weekly transcript reviews, fixes for what it misheard, and new call types.

Questions people ask

Will callers know it's an AI?

They should. I recommend it says so in the first sentence. People are fine talking to an AI that's quick and useful, and some places require the disclosure anyway.

How fast does it respond?

The target is under a second from when the caller stops talking. Streaming speech recognition, a fast model and streaming voice output get it there.

Which languages does it speak?

English, Hindi and most major languages work well today. Accents and noisy lines get tested with real recordings before launch.

What does a call cost to run?

Usually cents per minute, across the phone line, speech and the model. You get an estimate per thousand calls before the build starts.

How much does a voice AI agent cost to build?

Usually $8k to $25k. One call type on one number sits at the low end. Several call types, outbound campaigns or more than one language push it up. Call minutes, phone numbers and voice model usage are separate.

How long does it take?

4 to 8 weeks to production, with your team calling a test number from about week two.

What do you need from us to start?

Twenty or so recordings or transcripts of real calls, access to the system it books into or updates, and your rules for when a person must take over.

Related services

Contact

Tell me what you're trying to fix.

I read every message myself and usually reply the same day. A rough idea is enough to start.

Or send a short brief

Hours

Your hours work for me.

  • San Francisco

    --:--

  • New York

    --:--

  • London

    --:--

  • Berlin

    --:--

  • Dubai

    --:--

  • Singapore

    --:--

  • Sydney

    --:--

  • Surat

    --:--

    Me

I keep flexible hours and move my day to overlap with yours, whether that's a morning standup in New York or a late release in Sydney.