---
title: SIP DTMF Server
sidebar:
  label: Server
  order: 1
---
import SchemaInfo from '../../../../../components/SchemaInfo.astro';

This module starts a [SIP](https://en.wikipedia.org/wiki/Session_Initiation_Protocol) server that listens for incoming connections. When a call is received this module will emit events based on the touch tones (DTMF) received during the call. The event is sent out whenever the use presses the separator key defined in the params.

<SchemaInfo type="module" id="sip.dtmf.server"></SchemaInfo>

### Example

Start a UDP SIP server listening on port 5060 that will emit events whenever the user presses the `#` key on their phone during a call

```yaml
- id: sipDTMFServer
  type: sip.dtmf.server
  params:
    ip: 127.0.0.1
    port: 5060
    transport: udp
    separator: "#"
```