GetAudioFile
GetAudioFile(AlarmId As String/Integer, sAudioFile As String)
Gets in <sAudioFile> the name of the audio file associated to the alarm <AlarmId>. <AlarmId> can be the numeric object id of the alarm tag or its alphanumeric identifier, according with the type of <AlarmId> (Integer or String).
Returns an error code (0 = OK, 6 = alarm identifier not defined).