An action block that plays a DTMF tone in an ongoing call.
If the proceed option is set to Immediately, then the tone begins playback without pausing the fiber. If set to When complete, then the fiber will pause for the duration if it’s explicitly set, otherwise indefinitely.
Playback can be stopped (prematurely) by an DTMF tone stop block.
Note! This feature isn’t officially supported and requires Android 12+, may not work on all devices.