I struggled through the link you gave me (my command of French is very rusty, not having used it for almost 20 years and it wasn't great to start with!), but I see only passing references to QTR - it seems to be a thread about CIS.
Peter
[a href=\"index.php?act=findpost&pid=72853\"][{POST_SNAPBACK}][/a]
In the middle of the 1th page, you have a todo for QTR (for the R2400). Register, before you can send a MP to ELCAP to ask your question.