# Using Variables in Click to Call to Personalize Conversations
With our new **Click to Call Variables** feature, you can now pass extra customer information directly from your **Click to Call form** into the AI conversation. This allows your AI agent to greet customers by name, mention their product of interest, or adapt responses based on other attributes like **country, age, or any custom field** you choose.
This is a powerful way to create more **personalized, relevant, and effective conversations**.
***
### How It Works
When a customer submits your **Click to Call form**, you can send additional data as part of the request. This information is passed in the `"variables"` object, and the AI agent can use it dynamically during the call.
#### Example Request Body
```json
{
"phone": "+34xxxxxxxxx",
"variables": {
"name": "John",
"last_name": "Doe",
"product": "VoiceB AI",
"country": "Spain",
"age": "32"
}
}
```
In your agent’s script, you can then call any of these variables using **`{{variable_name}}`** syntax.
**Example in Script:**
```
Hello {{name}}, I see you are interested in {{product}}.
Let’s go over the details together.
```
***
### Setup Instructions
1. **Login** to your VoiceB account.
2. **Select your campaign** from the left-hand menu.
3. **Select the agent** you want to configure.
4. Go to **Configuration > Click to Call**.
5. Click the **Show Credentials & Instructions** button.
6. Copy your **API Token, Secret, and Endpoint**.
7. When sending your POST request to the Click to Call API, include the `variables` object with any customer data you want available during the call.
***
### Example Use Cases
* **Personalized Greetings**: Greet the customer by name.
* **Product Relevance**: Mention the specific product they selected on your site.
* **Regional Adaptation**: Adapt the conversation depending on the customer’s country or language.
* **Age-Targeted Messaging**: Offer different plan recommendations based on the age group.
* **Custom Data Fields**: Any other field you include in `variables` can be used in real time during the call.
***
### Technical Notes
* Always send requests from your **backend** to keep your credentials secure.
* You can pass as many variables as you want inside the `"variables"` object.
* Use `{{variable_name}}` in your script to insert these values dynamically.
***
✅ **With this new feature, every Click to Call conversation can now feel like a tailored, one-to-one experience.**
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