core_course_get_contents not returning all information

by Luca Viggiani.  

Hi, this is my first experience in using Moodle default web service.

I'm already successfully consuming some of the methods (REST format) to get information about learner, its enrollments and course contents. However, whean calling core_course_get_contents, according to the documentation, I would expect more information about each object contained in the modules array. For example:

modules//list of module
  list of ( 
    object {
      id int //activity id
      url string Optional//activity url
      name string //activity module name
      instance int Optional//instance id
      description string Optional//activity description
      visible int Optional//is the module visible
      modicon string //activity icon url
      modname string //activity module type
      modplural string //activity module plural name
      availability string Optional//module availability settings

In my case, I need to get the availability information of a SCORM 1.2 Lesson (module). I have set the availability (both start and end) in module settings in Moodle, but that information is not returned by the WS. I only get id, indent, instance, modicon, modname, modplural, name, url, visible

This happens with Moodle 2.7.7.

Thanks!