enableAudioManager method
Enables or disables the audio manager.
This is critical for DTMF functionality on Android. Should be called after register and before making calls.
Parameters:
enable: Whether to enable the audio manager (default: true)
Returns 0 on success, negative error code on failure.
Implementation
Future<int> enableAudioManager({required bool enable}) async {
throw UnimplementedError('enableAudioManager has not been implemented.');
}