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

# DTMF Detection API

> This file contains DTMF Detection Event api.

**Header:** `spf/api/modules/dtmf_detection_api.h`

## Structures

### `dtmf_detect_event_t`

**Members**

<ParamField path="tone_low_freq" type="uint16_t" />

<ParamField path="tone_high_freq" type="uint16_t" />

## Type Definitions

### `dtmf_detect_event_t`

```cpp theme={null}
typedef struct dtmf_detect_event_t dtmf_detect_event_t
```

## Macros

### `EVENT_ID_DTMF_DETECTION`

```c theme={null}
#define EVENT_ID_DTMF_DETECTION 0x0800113B
```