_. => {
        ifTime (09:00-19:00|mon-fri|*|*)
            switch (${EXTEN}) {
                case 123
                    goto to_123,123,begin;
                case 456:
                    goto to_456,456,begin;
            };

        Background(${ivr_dir}/16);
        Waitexten(3);
        Hangup;
    };