[Users] users acl

Daniel-Constantin Mierla writes: i haven't used group module at all, because it really does not implement ACL capabilit, it just checks if a user belongs to a group. which group a request belongs to, is not addressed by group module. group module is useful for simple group membership checking, for example, if a user is allowed to make a pstn call. but if we (actually telecom law in finland) complicate things a bit by introducing different types of pstn destinations, for example, national local, national long distance, national cellular, national long distance, international, different kinds of service numbers, etc. we would first need to figure out the group of the request by some module function AND then find out if caller belongs to that group. an efficient solution would combine the two actions into one. -- juha