Inbound call answering
When a customer places a WhatsApp call to your business number, your AI agent answers instantly — understands the request, looks things up, and resolves it, 24/7, in the caller's language. No hold music, no queue.
WhatsApp Business Calling
An AI voice agent that answers and makes WhatsApp calls
Customers call your WhatsApp Business number and an AI picks up — natural, real-time conversation in 22 Indian languages. Place outbound WhatsApp calls too. No phone line, no SIP trunk, no IVR tree.
- Inbound + outbound calls over your WhatsApp Business number
- Real-time voice-to-voice — sub-500ms, natural barge-in
- Sends links, prices, and payment options into the chat mid-call
- Per-minute billing — no per-call minimum, no seat fees
2.5B+WhatsApp users worldwide
22Indian languages
<500msVoice-to-voice latency
24/7AI answers every call
Why it matters
Your customers already live on WhatsApp — now they can call it
WhatsApp is how India talks to business — over 500 million users in India and 2.5 billion worldwide. Until recently you could only chat with a business there. WhatsApp Business Calling adds voice: customers tap to call your business number inside WhatsApp, and with CallMissed an AI voice agent answers on the spot — no phone line, no IVR menu, no hold queue.
The result is the speed of a phone call with the convenience of WhatsApp: the conversation is natural and spoken, but the agent can also drop a tracking link, a price, or a payment option into the chat while you're still on the line. And because it's an AI, it answers every call instantly, 24/7, in the caller's own language — and scales to as many calls as come in at once.
How it works
Launch AI WhatsApp calling in 4 steps
No telephony setup. If you already run a WhatsApp Business number, you're most of the way there.
01
Create a voice bot
Sign up free and configure a call bot — system prompt, voice, language, and the tools it can use mid-call.
02
Pick a call model
Choose a direct voice-to-voice model for the lowest latency, or a cascaded transcribe → LLM → speech pipeline. Add fallback tiers so a call never drops.
03
Link your WhatsApp number
Connect your WhatsApp Business number. Inbound calls to it are answered by your AI; you can also place outbound calls from the dashboard or API.
04
Go live
Customers call your WhatsApp number and the AI picks up. No phone line, no SIP trunk, no IVR tree — just a natural conversation.
Features
Everything your WhatsApp calling agent needs
Voice that feels human, grounded in your business, priced per minute.
Outbound AI calling
Place business-initiated WhatsApp calls from the dashboard or API with a clear objective — appointment reminders, order confirmations, lead follow-ups. The agent opens by stating why it's calling, and is permission-gated per WhatsApp's rules.
Real-time voice-to-voice
Direct speech-to-speech models do listening, reasoning, and speaking in one model for sub-500ms, human-feeling turn-taking and natural barge-in — the caller can interrupt and the agent adapts. A cascaded pipeline is available as an alternative.
Send messages mid-call
When a caller asks for something easier to read than to hear — a link, a price, an address, a payment option — the agent drops it straight into the WhatsApp chat behind the call, so they have it in writing.
Human handoff
Define escalation rules. The agent can hand a live call to your team with full context, or end the call cleanly when the conversation is genuinely done — no awkward dangling line.
22 Indian languages
Hindi, Tamil, Telugu, Bengali, Marathi, and 17 more — including Hinglish and code-switching mid-sentence. The caller speaks naturally; the agent keeps up without a language menu.
Call CRM + transcripts
Every call is logged with direction, duration, a full transcript, and the AI cost for that call. Review, search, and export from the Calling dashboard for QA and training.
Per-minute billing
Pay per minute of talk time in fractional credits — no per-call minimums, no seat fees. Inbound user-initiated calls are free on the platform; you pay only for the model usage of the conversation.
Knowledge-grounded answers
The voice agent answers from your uploaded knowledge base — catalogs, policies, FAQs — so it stays accurate on prices, hours, and process instead of improvising.
Use Cases
WhatsApp calling use cases
How Indian businesses put an AI on the other end of a WhatsApp call.
E-commerce
Order calls answered instantly
Customers tap 'call' on your WhatsApp to ask where their order is or how to return something. The AI answers, looks up the order, explains the status, and drops the tracking link into the chat — no hold music, no agent.
Result
Order-status calls resolved without a human picking up.
Clinics & services
Appointment calls, 24/7
Patients call to book, reschedule, or confirm appointments after hours. The AI handles the whole conversation by voice, confirms the slot, and sends the details to the chat — then places a reminder call the day before.
Result
After-hours booking calls handled with no staff on the line.
Collections & reminders
Outbound reminders that talk back
Instead of a one-way template, place an outbound WhatsApp call that actually converses — confirms identity, states the reason, answers questions, and offers a payment link in the chat. Politely ends the call when done.
Result
Two-way reminder calls at a fraction of an agent's cost.
Compare
WhatsApp AI calling vs the alternatives
How an AI agent on WhatsApp compares to a traditional IVR, a human call centre, and a missed-call service.
| Feature | CallMissed | Traditional IVR | Human call centre | Missed-call service |
|---|---|---|---|---|
Answers on your WhatsApp number | ||||
Natural conversation (not menu trees) | ||||
Available 24/7 | ||||
22 Indian languages + Hinglish | ||||
Sends links / payment in chat mid-call | ||||
Full transcript of every call | ||||
Scales to unlimited concurrent calls | ||||
No phone line / SIP trunk needed | ||||
Cost model | Per minute | Per seat + telecom | Per agent salary | Per missed call |
Comparison based on publicly listed features as of 2026. Check each vendor's site for the latest.
How it pairs
Voice and chat, on one WhatsApp number
WhatsApp Business Calling is the voice side of the same agent that runs your WhatsApp chatbot. The bot you configure for chat shares its knowledge base, tools, and escalation rules with calls — so a customer can message and call the same number and get a consistent answer either way. Calls can hand off to a human, and the agent can drop links or payment options into the chat as it talks.
Prefer calls over the traditional phone network instead of WhatsApp? Our AI Voice Agent covers inbound and outbound calling over Twilio, Exotel, Plivo, Ozonetel, and any SIP trunk. Building your own? Everything here is available through the voice agent API.
FAQ
WhatsApp Business Calling — FAQ
WhatsApp Business Calling lets businesses make and receive voice calls directly inside WhatsApp — no phone line or SIP trunk needed. With CallMissed, an AI voice agent answers those calls (or places them), holds a natural spoken conversation in the caller's language, looks things up in your knowledge base, and can send links or messages into the same chat. It's the voice counterpart to a WhatsApp chatbot, on the same number.
Put an AI on your WhatsApp calls
Create a free account and configure a voice bot in minutes. Pay per minute of talk time — inbound user calls are free on the platform.