XMLTABLE solution without getting right parenthesis missing error
You might have wanted this:

WITH XML_DATA AS
(SELECT XMLTYPE('&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;response&gt;
    &lt;phone&gt;
        &lt;number&gt;859111&lt;/number&gt;
        &lt;contactModes&gt;
            &lt;mode&gt;AUTO_DIAL&lt;/mode&gt;
            &lt;mode&gt;AUTO_TEXT&lt;/mode&gt;
            &lt;mode&gt;MANUAL_DIAL&lt;/mode&gt;
        &lt;/contactModes&gt;
        &lt;contactableTimeRange&gt;
            &lt;day1&gt;
                &lt;startTime&gt;08:00:00&lt;/startTime&gt;
              &lt;endTime&gt;20:00:00&lt;/endTime&gt;
            &lt;/day1&gt;
            &lt;day2&gt;
                &lt;startTime&gt;08:00:00&lt;/startTime&gt;
                &lt;endTime&gt;20:00:00&lt;/endTime&gt;
            &lt;/day2&gt;
        &lt;/contactableTimeRange&gt;
    &lt;/phone&gt;
&lt;/response&gt;') doc
FROM DUAL)
SELECT X.phone
,x2."MODE"
,To_Number (SubStr (x3.Day, 4)) Day
,x3.starttime
,x3.endtime
/*,x4.* */
FROM XML_DATA XD,
XMLTABLE('/response/phone' PASSING XD.DOC
     COLUMNS phone  VARCHAR2(36) PATH 'number',
            CONTACT_MODES XMLTYPE PATH 'contactModes',
            CONTACT_TIMES XMLTYPE PATH 'contactableTimeRange')  X
   , XMLTABLE('/contactModes/mode'
   passing x.contact_modes
   COLUMNS "MODE" VARCHAR2(10) Path '.' ) AS  x2
   ,XMLTABLE('/contactableTimeRange/*' PASSING X.CONTACT_TIMES
            COLUMNS Day VARCHAR2(10) PATH 'name()',
                    STARTTIME VARCHAR2(10) PATH 'startTime',
                    ENDTIME VARCHAR2(10) PATH 'endTime') AS X3


Which produces:

    PHONE                                MODE              DAY STARTTIME  ENDTIME
    ------------------------------------ ---------- ---------- ---------- --------
    859111                               AUTO_DIAL           1 08:00:00   20:00:00
    859111                               AUTO_DIAL           2 08:00:00   20:00:00
    859111                               AUTO_TEXT           1 08:00:00   20:00:00
    859111                               AUTO_TEXT           2 08:00:00   20:00:00
    859111                               MANUAL_DIA          1 08:00:00   20:00:00
    859111                               MANUAL_DIA          2 08:00:00   20:00:00