Multi domino Domain Scheduler availability

Hi All, i’m trying to understand why i can see availability info about other user in a trusted domino domain. The problem is that when i schedule a meeting and I select a user from another address book (published via directory assistance) i don’t see if he is busy or not and i only have no info (Gray color).

The domino domains are trusted.

Anyone have solve this problem?

Bye

Riccardo