Abstract: The present invention describes a registration method wherein a user is registered in a communication network. According to a first aspect, a registration message is used, which comprises a header field for defining at least one other identity of the subscriber. According to a second aspect, a registration message is used, which comprises an identity information in its payload portion, said identity information defining at least one other identity of the subscriber. According to a third aspect, a one-by-one registration is performed based on an identity information stored at the terminal device, said identity information defining at least one other identity of the subscriber. Thus, the user or subscriber can register some or all of his public identities at once with one registration procedure. Furthermore, the subscriber can utilize his identities smoothly and easily, and at the same time prevent unwanted incoming calls.

Abstract: A method for transferring information in a communication system whereby one or more subscriber units may communicate, the system comprising a network having a connection controller, one or more subscriber information stores and at least one application provider, the method comprising registering a subscriber unit with the network, including transmitting from the subscriber information store associated with that subscriber unit to the connection controller information indicative of the access of that subscriber unit to application services: and in order to enable access to services of the application provider, transmitting from the connection controller to the application provider at least one of: a. an indication of the address of at least one unit from which the application provider may retrieve subscriber specific information related to the services of the application provider; and b. subscriber specific information related to the services of the application provider.

Abstract: There is disclosed a method of establishing a user group amongst a plurality of mobile terminals, comprising: receiving at a host device, from at least one of the plurality of mobile terminals, an identity associated with each of said mobile terminals; and grouping or collecting, at the host device, the identities associated with the mobile terminals, to thereby establish a user group, wherein the at least one said mobile terminal transmits said associated identities to the host device on a local communication link.

Abstract: The invention relates to a communication system and method wherein a user equipment contains, or is provided with, a list of items of service-related information. The list of service-related information represents a list of service provider names, services and/or service types or the like. When intending to establish or modify a session or connection or use a service, the user equipment selects, in one of the embodiments, an item from the list and performs a DNS query to resolve the name of the selected item to an IP address which then is used for set-up. The list may be provided by an DHCP server or in a PDP context message.