When no operators have an extension assigned, questionnaires in test mode fail to create phone numbers for new cases

[Adam Zammit]

When no operators have an extension assigned, questionnaires in test mode fail to create phone numbers for new cases

See: functions/functions.operator.php

function add_case

    $sql = "INSERT INTO contact_phone (case_id,priority,phone,description)
      SELECT $case_id as case_id,@row := @row + 1 AS priority,SUBSTRING_INDEX(e.extension,'/',-1) as phone, CONCAT(o.firstName, ' ', o.lastName)
      FROM operator as o, `extension` as e
      WHERE o.enabled = 1
      AND e.current_operator_id = o.operator_id";

    $db->Execute($sql);

- this should be updated to allow adding dummy extensions where don't exist (left join)