> For the complete documentation index, see [llms.txt](https://docs-conversational-ai.syntphony.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-conversational-ai.syntphony.com/scai-voice-gateway/configure-voice-gateway.md).

# Configure Voice Gateway

Understand where Voice Gateway behavior is configured, how shared settings apply across calls, and when to override them for a specific interaction.

A Phone channel connects a Conversational Project to Voice Gateway. After the connection is available, Voice Gateway configuration determines how phone interactions behave.

To create and configure the Phone channel, see [**this guide**](/scai-voice-gateway/configure-voice-gateway/how-to-create-a-phone-channel.md).

### Understand the configuration model

Voice Gateway configuration is designed around shared behavior and specific exceptions.

In most cases, define behavior once at the shared configuration level and reuse it throughout the voice experience.

Override that behavior only when an individual Answer requires something different.

The configuration model can be understood as:

```
Phone channel
    │
    ▼
Voice Gateway
    │
    ├── Shared interaction configuration
    │   ├── DNIS behavior
    │   └── Call settings
    │
    ├── Speech providers
    │
    ▼
Conversational interaction
    │
    └── Answer-specific Technical text
         when an override is required
```

Each area has a different responsibility:

| Area                 | Purpose                                                             |
| -------------------- | ------------------------------------------------------------------- |
| **Phone channel**    | Connects the Conversational Project to Voice Gateway                |
| **DNIS**             | Defines baseline behavior for calls associated with a dialed number |
| **Call settings**    | Defines lifecycle, timeout, error, and post-call behavior           |
| **Speech providers** | Configures Text-to-Speech and Speech-to-Text providers              |
| **Technical text**   | Overrides supported behavior for a specific Answer                  |


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