Method for limiting use of terminal equipments

The invention relates to a method for limiting terminal equipment use of home subscribers of a network in a telecommunications system in which each subscriber has a subscriber identity and with each terminal equipment is associated an equipment identity (IMEI). In the method, by which the operator can, if desired, supervise the terminal equipments used in the network by the home subscribers, a home equipment register (6) is maintained about the terminal equipments allowed to the home subscribers of the network; a subscriber identity of the user is received from the terminal equipment; an equipment identity is received from the terminal equipment; on the basis of the subscriber identity it is checked whether the subscriber is a home subscriber of the network, and if so, the home equipment list (6) of the network is checked to see whether the terminal equipment is an allowed one, and if the terminal equipment is not an allowed equipment, the use of the equipment is limited. The invention also relates to an equipment register in which the method of the invention can be applied. The invention further relates to a mobile system in which the method and equipment register of the invention can be used.