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10x Your Call Volume with Voice AI Agents

CallKaro AI answers every call, books every appointment, and qualifies every lead 24/7, at a fraction of the cost. Scale your front line without scaling your team.

See how it works

Trustedby growing teams

  • 70M+

    Calls answered

  • 24/7

    Always available

  • ~600 ms

    Average Latency

Describe your ideal voice agent

Tell CallKaro AI what you need and we'll draft the script, call flow, and voice — ready to launch in minutes.

About Us

Voice AI agents that
never miss a call

They pick up instantly, understand every caller, and book appointments automatically — so every lead is captured, day or night.

100+ businesses on CallKaro AI

Answering calls across 15+ countries

About us
  • 0M+

    Calls handled
    every month

  • 0M+

    Minutes of conversations
    every month

  • 0+

    Countries
    served worldwide

  • 0+

    Languages
    spoken fluently

  • 0/7

    Calls answered
    day and night

  • 0M+

    Unique leads handled
    every month

  • 0x

    More leads
    captured and booked

  • 0%

    Lower cost
    than a call center

Live Demo

Hear your AI agent in action

Pick a use case and talk to the agent live — right here.

Live call · wealth qualifier agent

Or call us on +91 80357 36777

A polite outbound agent that introduces wealth management services, qualifies interest in long-term investments, and schedules callbacks with senior wealth managers.

  • Specialized finance conversations
  • Understands the caller's needs naturally
  • Guides the caller toward a clear next step

Voice provider

ElevenLabs v4 · Most natural, expressive voices

Our Models

Meet our in-house models

Arjuna and Krishna are two of our in-house built models, engineered to power CallKaro AI and stand out from what's out there in the market. Here's how they compare.

Arjuna 2.5

Benchmarked head-to-head against GPT-5.4-mini

Focused and direct, Arjuna 2.5 is built for low-latency voice AI infrastructure, enabling seamless outbound and inbound calls for lead qualification, sales conversations, and appointment booking.

Time to first token
0.505s
60% fastervs 1.272s
More cost effective
63%
vs GPT-5.4-mini
Languages generated fluently
20+
Signature strength
Token context window
98k
Signature strength

Krishna 2.5

Benchmarked head-to-head against GPT-5.6 Luna

Equipped with strong analytical reasoning, Krishna 2.5 is designed for post-call analysis, sentiment analysis, data extraction, and deriving actionable insights from conversations.

Average accuracy
97.5%
Highervs 96.2%
End-to-end analysis time
9s
36% fastervs 14s
Cost per call
₹0.432
28% cheapervs ₹0.602
Variables extractable per call
40+
Signature strength
Capabilities

Deliver Truly Human-Like Customer Service with Voice AI Agents

Power your customer interactions with best-in-class capabilities that drive real business outcomes.

Multilingual & Accent-Adaptive

Our Voice AI agent supports 40+ languages and understands diverse regional accents for seamless, inclusive conversations.

Low Latency

Fast responses, no matter the query. Experience real-time interactions with near-zero delay.

Natural, Human-Sounding Voice

No robotic tones. Our voice agents sound genuinely human, engaging customers with warmth, clarity, and emotion.

Interrupt-Friendly & Intuitive

Just like a real human, the AI can handle interruptions mid-sentence, adapt, and pick up the conversation naturally.

Context-Aware & Customisable

Tailor every conversation to suit your business logic. Our AI adapts fluidly to user intent, context, and tone.

Simple API Integration

Plug into your existing CRM, databases, and knowledge bases effortlessly, with flexible, developer-friendly APIs.

Features

Everything your agent needs,
built in from day one.

From live call transfers to post-call analytics — the capabilities that make an Voice AI agent actually usable in production.

Call Transfer

Seamless Call Transfer to Human Agents

Automatically route calls to a human agent when your AI reaches its limit or the situation requires a personal touch.

Knowledge Base

Custom Knowledge Base for Contextual Conversations

Upload your own content to give your AI agent the context it needs to respond accurately and intelligently.

Custom Functions

Custom Functions for API-Based Actions

Enable your voice agent to call your own APIs at any stage of the conversation: before, during, or after the call.

Calendar Booking

Calendar Booking Integration

Connect your Cal.com account to let CallKaro AI schedule appointments directly on your calendar.

Featured Case Studies

Real businesses.
Real results with voice AI.

A look at recent deployments across industries. See how teams use CallKaro AI to answer more calls, capture more leads, and cut response times, without adding headcount.

Our Process

Five steps from first
call to a live voice agent.

Five steps to a working AI calling agent. The same team guides you from the first call to launch, and you can be live in days, not months.

  1. 1

    Discovery

    We start with a call to understand your goals, your call flows, and the outcomes you want to automate. No generic templates.

  2. 2

    Build

    We configure your voice agent: the script, a knowledge base built from your own content, custom functions, and clear rules for when to hand off.

  3. 3

    Connect

    We connect your phone numbers, CRM, and calendar, then test the agent on real scenarios until it sounds right and handles the edge cases.

  4. 4

    Go live

    Your agent goes live on inbound and outbound calls, answering in seconds and transferring to a human whenever a call genuinely needs one.

  5. 5

    Optimize

    Post-call analytics show what is working. We keep tuning answer rates, resolution, and conversions so your results improve every week.

Integrations

Powerful integrations for
every call.

Connect CallKaro AI to the tools your team already runs on, and keep every call, booking, and follow-up in sync automatically.

  • CRM

    Sync calls, contacts, and lead stages with HubSpot, LeadSquared, or any custom CRM automatically.

  • WhatsApp

    Send summaries and follow-ups through your own WhatsApp number, or providers like AiSensy and Heltar.

  • Meetings

    Book meetings through Calendly or Cal.com the moment a call wraps up.

  • Slack

    Push live call transcripts and handoff alerts to the channel your team already watches.

  • Telephony

    Bring any SIP-compatible telephony provider and route calls on infrastructure that's already yours.

  • API

    Connect any custom API to pull in your data, trigger actions, and plug CallKaro AI straight into the tools built just for your workflow.

FAQ

Answers about AI calling.

Bringing Voice AI agents into your business can raise a lot of questions, especially if you're not sure where to start. Here are the ones teams ask us most often before getting in touch.

Don't see your question?

Talk to our team directly

Most teams launch in days, not months. We help you script your first agent, connect your systems, and run test calls, so you can be handling real conversations within a week.

Contact

Talk to our team.

Tell us about the calls you want to automate. We map your use case and get a clear plan in your inbox within one business day.

Private & secure

Tell us about your calls.

Book a demo

Ready to get started?