public static class Audios {
        private static final String AUDIO_FOLDER = "http://ivoice.online/sounds/clients/sanitas/check_appointment/";
        static final String GREETING_P_1 = AUDIO_FOLDER + "greeting_p1.wav";
        static final String GREETING_P_2 = AUDIO_FOLDER + "greeting_p2.wav";
        static final String GREETING_P_3 = AUDIO_FOLDER + "greeting_p3.wav";
        static final String WAIT_YOU_P_1 = AUDIO_FOLDER + "wait_you_p1.wav";
        static final String WAIT_YOU_P_2 = AUDIO_FOLDER + "wait_you_p2.wav";
        static final String TRANSFER_RECEPTION_TIME = AUDIO_FOLDER + "transfer_reception_time.wav";
        static final String THANKS_FOR_ANSWER = AUDIO_FOLDER + "thanks_for_answer.wav";
        static final String REDIRECT_ADMIN = AUDIO_FOLDER + "redirect_admin.wav";
        static final String REPEAT_GREETING_SILENCE = AUDIO_FOLDER + "repeat_greeting_silence.wav";
        static final String REPEAT_GREETING_INVALID_INPUT = AUDIO_FOLDER + "repeat_greeting_invalid_input.wav";
        static final String DELETE_APPOINTMENT = AUDIO_FOLDER + "delete_appointment.wav";
    }