A number of users of a public switched communications service who have the ability to communicate with one another without interference from others.
This function allows you to limit communication to predetermined group of users.
A group of customers, who have dealings with each other and who, for regulatory purposes, are not to be viewed as the general public.
A service that lets users form groups that limit communication to one predetermined group of users. A user may be a member of one or more closed user groups. The groups are formed by the network operator at the user's request.
A group of users in a network who are permitted to communicate with each other but not with users outside the group.
A closed user group permits users belonging to a group to communicate with each other, but precludes communications with other users who are not members of the group.