[Freeswitch-users] Presence isolaiton/alias

Is there any way to achieve presence isolation for arbitrary users in one domain? I'm look fuctionality which works like asterisk hints: https://wiki.asterisk.org/wiki/display/AST/Extension+State+and+Hints It should work like: User 1000 may have internal number 100 User 1001 may have internal number 101 both use context ctx1, so user 1000 may subscribe to 101 presence but not 1001 and user 1001 may subscribe to 100 presence but not 1000 and users in other context may not subscribe nowhere 100, 101 and 1000, 1001 How can this may be achieved? -- With best regards, Artur Kraev