
public class VoiceQuestionnaireServiceSample : IAppPlugin

    {

        public ManagedSession Session { get; set; }

        private const string PhraseStart = "phrase:sample_ivr_";

        private const string InvalidAudioFile = PhraseStart + "invalid";

        private const string RecordLocation = "/usr/local/freeswitch/recordings/";


        public void Run(AppContext context)

        {

            Session = context.Session;

            Session.Answer();

            Session.SetTtsParameters("flite", "kal");

            Session.sleep(1000, 0);


            var questionnaireService = new VoiceQuestionnaireService(

                                            Session, InvalidAudioFile,

                                            PhraseStart, RecordLocation);


            var phoneNumber = questionnaireService

                .AskAndVerifyQuestion(

                9, 11, 3, 10000, "#", "enter_phone_number",

                x => "you_entered_phone_number:" + x, "\\d+", _ => true);


            var nameRecordingFile = questionnaireService

                    .AskRecordAndVerifyQuestion(

                    "record_name", x => "verify_recording:" + x,

                    string.Format("{0}_{1}_{2}", Session.Uuid, DateTime.UtcNow.ToString("MMddyyyy"), phoneNumber));


        }

    }