# Missed Call to AI Voice Callback

> Architecture for calling every missed call lead back within a minute with an AI voice agent: missed call, signed webhook, your system, outbound AI call, CRM update. Plus the done-for-you option.

Source: https://edesy.in/blog/missed-call-to-ai-voice-callback

**Short answer:** a missed call number captures the lead and sends a signed `call.missed` webhook in
real time. Your system (or ours, if you ask us to set it up) receives that webhook and places an
outbound call to the caller through an [AI voice agent](https://edesy.in/ai-voice-agent). The agent qualifies the
lead, books the next step and writes the outcome back to your CRM. Every lead gets a call within about
a minute, including at 11 pm on a Sunday.

[Get a Missed Call Number](https://missedcall.edesy.in/?utm_source=edesy.in&utm_medium=blog&utm_campaign=missed-call)
to start capturing leads, and tell us if you want the callback wired up for you.

## Why Callback Speed Matters

People give missed calls on impulse: at a traffic signal looking at a hoarding, reading the morning
paper, watching a TV ad. Intent is highest in that moment and fades quickly. The person may also have
given missed calls to two of your competitors in the same minute.

Most teams lose leads not at capture but at callback:

- Calls arrive at night and on weekends when nobody is at the desk.
- A campaign spike produces more leads in an hour than the team can call in a day.
- Callbacks happen in whatever order the executive scrolls the list.

An AI voice agent removes the queue for the first call. Your human team still closes; the agent makes
sure nobody waits.

## The Architecture

```
Caller gives missed call
        |
        v
Missed call number  -- busy tone, caller not charged
        |
        v
call.missed webhook (signed, retried, real time)
        |
        v
Your endpoint: verify -> dedupe on call_sid -> queue
        |
        v
Worker: rules (hours, repeat caller, campaign) -> place outbound call
        |
        v
AI voice agent calls the lead, qualifies, books next step
        |
        v
Outcome written to CRM; hot leads routed to a human
```

### Step 1: Capture

Each campaign gets its own missed call number, labelled in the portal. The call is rejected with a busy
tone, so the caller pays nothing. Number, time and number label are logged instantly. See the
[callback request use case](https://edesy.in/missed-call-service/use-cases/callback-request).

### Step 2: Receive the webhook

Your endpoint receives:

```json
{
  "event": "call.missed",
  "timestamp": "2026-10-20T21:14:03Z",
  "data": {
    "call_sid": "...",
    "from": "+919876543210",
    "to": "+918045xxxxxx",
    "phone_number_name": "Diwali print ad"
  }
}
```

Verify `X-Edesy-Signature`, store the event keyed on `call_sid`, return 200. The details are in
[missed call webhook best practices](https://edesy.in/blog/missed-call-webhook-best-practices).

### Step 3: Decide whether to call

This is where most of the business logic lives. A small rules function is enough:

| Rule | Example |
|---|---|
| Calling hours | Call immediately between 9 am and 9 pm; queue night leads for the morning, or call at night only if your use case and consent allow it |
| Repeat caller | If this number was called back in the last 24 hours, do not call again; notify the assigned executive instead |
| Existing customer | If the number matches an active customer in the CRM, route to support, not sales |
| Campaign script | Choose the agent script from `phone_number_name` (project A vs project B, JEE vs NEET) |
| Capacity | Cap simultaneous outbound calls so a TV spike does not exhaust your channels |
| Delay | Wait about 60 seconds before calling so it does not feel like an instant robocall |

Follow applicable telemarketing rules (including DND and calling-hour requirements) for your use case.
A callback to someone who just asked for one is a different situation from cold calling, but get your
own compliance advice.

### Step 4: Place the outbound call

Your worker calls the AI voice agent's outbound API (or the [Voice API](https://edesy.in/voice-api) if you run your own
agent) with the caller's number, the script or agent to use, and context such as the campaign name.
Pass your own lead ID as an external reference so the result can be matched back.

### Step 5: Run the conversation

A good missed call callback script is short:

1. "Hi, this is the assistant from [business]. You gave us a missed call about [offer] a minute ago.
   Is this a good time?"
2. Two or three qualifying questions (budget range, location, course, timeline).
3. One clear next step: book a site visit, a counselling slot, a test drive, or "our executive will
   call you at 5 pm".
4. Confirm and close.

Because the missed call was language-neutral, choose the callback language by number or region. Edesy's
AI voice agent supports Hindi and several other Indian languages.

### Step 6: Write back and hand off

Write the outcome (answered or not, qualification answers, booked slot) to the CRM. Route hot leads to
a human immediately; your team can call them from the [outbound dialer](https://edesy.in/outbound-dialer). Retry
unanswered leads once or twice at different times, then stop.

## Build It or Have It Set Up

| | Build it yourself | We set it up for you |
|---|---|---|
| Missed call capture | Self-serve portal | Same |
| Webhook receiver and rules | Your code | Configured by us for your account |
| AI voice agent | Configure in the AI voice agent app and call its API | We configure the agent and script with you |
| CRM write-back | Your code | Edesy CRM, or your CRM connected by us |
| Time to live | Depends on your team | Usually a few days after we understand your flow |

Automatic AI callback is **not** a switch in the missed call portal today. It is available on request:
we connect your missed call number to an AI voice agent for your account. If you have developers, the
webhook plus API route above gives you full control.

## Cost Shape

Two parts, billed separately:

1. **Missed call capture:** ₹499 per month per number plus ₹0.30 per webhook event delivered, or
   ₹1,498 per month for the unlimited plan (plus GST). See [pricing](https://edesy.in/missed-call-service/pricing).
2. **Callback minutes:** the AI voice agent is billed per minute of conversation. Short qualifying calls
   keep this low; check the current rates in the [AI voice agent](https://edesy.in/ai-voice-agent) pricing.

Only leads that pick up generate meaningful call minutes, and every lead gets a first attempt.

## When Not to Automate

An AI first call is not right everywhere:

- **Very high-value, low-volume leads** (luxury property, large B2B deals) may deserve a human first call.
- **Sensitive contexts** such as some healthcare or financial conversations may need a human.
- **Campaigns without a clear next step** produce awkward AI calls. Fix the offer first.

In those cases, use the webhook to alert a human instantly (CRM task, notification) instead.

## Measuring the Callback Funnel

Once callbacks are automatic, measure each stage so you know where leads are lost:

| Stage | Source |
|---|---|
| Unique callers | Missed call dashboard, per number |
| Callback attempted | Your worker logs or CRM |
| Callback answered | AI voice agent call logs |
| Qualified | Agent's captured answers in the CRM |
| Next step booked | CRM stage |
| Converted | CRM stage |

If attempted is far below unique callers, your rules are too strict or the worker is failing. If answered
is low, try a short delay, a different time of day, or a recognisable caller ID. If qualified is low, the ad
is attracting the wrong audience or the script asks the wrong questions. Review a sample of call
recordings every week during the first month; scripts improve fastest when someone listens.

## Get Started

1. [Get a Missed Call Number](https://missedcall.edesy.in/?utm_source=edesy.in&utm_medium=blog&utm_campaign=missed-call)
   and complete KYC.
2. Set up a webhook to your system, or to [Edesy CRM](https://edesy.in/crm) on its free plan.
3. Either build the callback worker above, or ask us to set up the automatic AI callback for your account.

## Frequently Asked Questions

### Does the missed call service call leads back automatically?

Not by default. The missed call service captures the caller and delivers a signed webhook. Your system uses that webhook to trigger an outbound call by an AI voice agent or a dialer. If you want it done for you, automatic AI callback is available on request and we set it up for your account.

### How fast can an AI voice agent call a missed call lead back?

The webhook arrives in real time, so the outbound call can be placed within seconds. Many teams add a short deliberate delay of about a minute so the caller is not surprised by an instant ring.

### What should the AI voice agent say on the callback?

Introduce the business, reference the ad or offer the caller responded to, ask two or three qualifying questions, and offer a clear next step such as a site visit, counselling slot or human callback. Keep it short.

### Can the AI voice agent speak Hindi and other Indian languages?

Yes. Edesy's AI voice agent supports Hindi and several other Indian languages. Because a missed call itself is language-neutral, you can pick the callback language per number or per campaign.

### What if the lead does not answer the AI callback?

Schedule one or two retries at different times, then hand the lead to your team or mark it unreachable in the CRM. Do not retry endlessly.