> ## Documentation Index
> Fetch the complete documentation index at: https://docs.svalync.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Send Call

> Initiate outbound voice calls using AI agents

# Send Call

The Send Call node enables you to initiate outbound calls using configured AI voice agents.

## Overview

This node allows you to:

* Initiate outbound calls
* Use configured voice agents
* Execute conversation flows
* Handle call responses
* Monitor call progress

## Configuration

| Parameter       | Type    | Description                  |
| --------------- | ------- | ---------------------------- |
| Agent ID        | String  | ID of the voice agent to use |
| Phone Number    | String  | Target phone number          |
| Call Parameters | Object  | Call-specific settings       |
| Callback URL    | String  | Webhook for call events      |
| Recording       | Boolean | Enable call recording        |

## Example Usage

### Basic Call

```json theme={null}
{
  "agent_id": "agent_123abc",
  "phone_number": "+1234567890",
  "call_parameters": {
    "priority": "normal",
    "retry_attempts": 1
  }
}
```

### Advanced Call Configuration

```json theme={null}
{
  "agent_id": "agent_123abc",
  "phone_number": "+1234567890",
  "call_parameters": {
    "priority": "high",
    "retry_attempts": 3,
    "retry_interval": 300,
    "max_duration": 600,
    "scheduled_time": "2024-03-01T10:00:00Z",
    "custom_variables": {
      "customer_name": "John Doe",
      "account_type": "premium"
    }
  },
  "callback_url": "https://api.example.com/call-events",
  "recording": true,
  "transcription": true
}
```

## Call Parameters

### Priority Levels

```json theme={null}
{
  "priority": {
    "type": "string",
    "enum": ["low", "normal", "high", "urgent"],
    "default": "normal"
  }
}
```

### Retry Settings

```json theme={null}
{
  "retry_config": {
    "attempts": 3,
    "interval": 300,
    "conditions": ["no-answer", "busy", "failed"],
    "max_total_attempts": 5
  }
}
```

## Call Events

Events emitted during the call:

* `call.queued`
* `call.initiated`
* `call.ringing`
* `call.connected`
* `call.in_progress`
* `call.completed`
* `call.failed`

## Response Handling

Configure response handlers:

```json theme={null}
{
  "response_handlers": {
    "positive": {
      "patterns": ["yes", "sure", "okay"],
      "action": "proceed_flow"
    },
    "negative": {
      "patterns": ["no", "not interested", "busy"],
      "action": "end_call"
    },
    "transfer": {
      "patterns": ["speak to human", "representative"],
      "action": "transfer_call",
      "transfer_number": "+1987654321"
    }
  }
}
```

## Call Analytics

Available analytics:

```json theme={null}
{
  "analytics": {
    "duration": "number",
    "sentiment_scores": {
      "positive": "number",
      "neutral": "number",
      "negative": "number"
    },
    "speech_metrics": {
      "clarity": "number",
      "pace": "number",
      "engagement": "number"
    },
    "outcome": "string",
    "conversion_status": "boolean"
  }
}
```

## Error Handling

Common error scenarios:

* Invalid phone number
* Agent not available
* Network issues
* Call rejected
* Timeout errors