Can someone help me by explaining what the alias_db exactly does: http://www.kamailio.org/docs/modules/stable/modules_k/alias_db.html
As I've understood it, I can add several aliases to my subscribers, for example: 100@my-domain.com can have the alias 600@my-domain.com and therefore a client can login with the username 600@my-domain.com, but really have the preferences of 100@my-domain.com as that is the real subscriber.
But it doesn't seems to work.