Sorting container by page-link title field

[Benjamin . Papez]

I am displaying container list entries with the pagination tags and sorting. One field in the container is a page-link. In the table I am displaying the original title of the page, but when I click on sorting the table by this field, it sorts the page-IDs rather than the page titles, because the "value" of the field is the page-ID.

How can I sort by the page title?

Benjamin Papez