# toneChangeEvent constant

EventStreamProvider<RtcDtmfToneChangeEvent> const toneChangeEvent = const EventStreamProvider<RtcDtmfToneChangeEvent>('tonechange')

Static factory designed to expose `tonechange` events to event handlers that are not necessarily instances of RtcDtmfSender.

See EventStreamProvider for usage information.

## Implementation

    static const EventStreamProvider<RtcDtmfToneChangeEvent> toneChangeEvent =
        const EventStreamProvider<RtcDtmfToneChangeEvent>('tonechange')