# Test and Publish

> Place a test call to your own phone from the IVR Studio builder, then publish the flow so numbers and API calls can use it.

Source: https://edesy.in/docs/ivr/getting-started/test-and-publish

To test a flow, save it and click **Test call** in the builder: enter your phone number (and optional JSON variables) and your phone rings with the saved flow. To publish, click **Publish**. Publishing runs the flow checks; a flow with errors stays a draft. Numbers and API calls only run published flows.

## Test call

1. **Save** the flow. The test call uses the saved version ("Save before testing to use your latest changes").
2. Click **Test call** and enter **Your phone number** (a 10-digit Indian number).
3. Optionally enter **Variables (JSON, optional)**, e.g. `{ "order_id": "A123", "name": "Ravi" }`, to fill `{{var.*}}` tokens.
4. Pick up. The dialog shows the call status and duration.

| Requirement | Why |
|---|---|
| Wallet balance | Test calls are billed like any other call |
| A number in your workspace | Used as the caller ID. Without one the test returns "no caller ID" |
| Valid variables | Same limits as the API: up to 20 keys, values up to 512 characters, 4 KB in total |

Test calls appear in [Call Logs](https://edesy.in/docs/ivr/logs/call-logs) with the source **Test**.

## Previews without a call

- **TTS preview:** text fields with a speaker icon play the prompt in the chosen voice.
- **VoiceML preview:** shows the call instructions the flow produces. Also available as `GET /v1/ivr/flows/{id}/preview`.

## Publish

1. Open the flow checks and fix every **error**. Warnings, such as a node with no next step, don't block publishing.
2. Click **Publish**. The flow becomes a new published version.
3. Later edits are a draft until you publish again. The toolbar shows **Unpublished changes** until then.

## FAQ

### Do test calls cost money?

Yes, at the normal rate of Rs 1.50 per minute. The Rs 20 free credit covers them.

### Does a test call use the draft or the published version?

The saved version in the builder, so you can test changes before publishing.

### Why can't I publish?

The flow has at least one error in flow checks, for example a Say node with no text or a Transfer node with no number.

### Do callers hear my edits straight away?

No. Callers hear the published version until you publish again.