---
title: "RTCDTMFSenderEventMap | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

# Interface RTCDTMFSenderEventMap

interface RTCDTMFSenderEventMap {  
    [tonechange](#tonechange): [RTCDTMFToneChangeEvent](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.RTCDTMFToneChangeEvent/);  
}

##### Index

### Properties[](#properties)

[tonechange](#tonechange)

## Properties[](#properties-1)

### tonechange[](#tonechange)

tonechange: [RTCDTMFToneChangeEvent](https://docs.maptiler.com/sdk-js/api-reference/interfaces/Externals.RTCDTMFToneChangeEvent/)