---
title: "Live WhatsApp Call Demo — WhatsMCP"
description: "Message our number and it calls you back on WhatsApp in seconds: a greeting, a beep, and your own voice played straight back."
url: "https://whatsmcp.com/demo"
---

Live demo · we call you

# Text us. We call you back on WhatsApp.

Send us a message and your phone rings within seconds — a real WhatsApp call, placed by software. Say something after the beep and you will hear your own voice come straight back.

 or call it yourself — 

We call only the number that messaged us, we do not read what you wrote, and the five seconds you record are deleted the moment they have played back.

call.log

```
12:04:07  message in     from +44 77•• ••••23
12:04:09  calling you    WhatsApp voice
12:04:12  answered       greeting
12:04:24  beep           recording 5 s
12:04:29  playback       your own voice
12:04:38  goodbye        31 s, recording deleted
```

one demo call, from your side of it

Audio sequence

## What you'll hear

About thirty seconds, start to finish. Nothing is queued, scheduled or replayed: the call is placed when your message arrives.

1.  1 0:00
    
    You send a message to the number. Anything at all.
    
2.  2 0:03
    
    Your phone rings — a WhatsApp call, placed by software.
    
3.  3 0:05
    
    A greeting: where you are and what happens next.
    
4.  4 0:17
    
    A beep. Say something; five seconds are recorded.
    
5.  5 0:22
    
    You hear your own voice, back through the same call.
    
6.  6 0:30
    
    Goodbye, and the call ends.
    

Why it matters

## What the demo proves

### A real WhatsApp call

Placed from an ordinary WhatsApp number to yours. Not the Meta Business API, no template, no business verification.

a regular WhatsApp number

### Placed by software, outbound

Your message arrives, and code decides to ring you. That is the direction an agent needs and the hard one to build.

message in → call out

### Audio both ways

What you hear after the beep is your own voice, recorded a moment earlier and sent back over the same call.

you speak → you hear it back

Topology

## The path your call takes

One message in, one WhatsApp call out — a few seconds apart.

1.  You send a WhatsApp message to the demo number.
2.  WhatsMCP sees your message.
3.  WhatsMCP calls you back on WhatsApp, and your phone rings.

 

Constraints

## Honest limits

A public demo on a real WhatsApp number, so it is fenced in. Each of these is enforced in code rather than promised.

-    One call at a time — the demo is a single line.
-    Forty-five seconds, then it hangs up on itself.
-    Three answered calls per number per day, sixty across everyone.
-    One call per number per ten minutes, however many times you write.
-    We call only the number that messaged us. There is no field to type someone else’s.
-    We do not read your message. Any message is the request.
-    Your five seconds are deleted as soon as they have played back.
-    No keypad menus yet.

## The same path your own numbers get.

[Get started](https://app.whatsmcp.com/console/register) 

Pair a WhatsApp number, pick a voice plan, and point it at a hosted line or your own PBX.