Telefonaktiebolaget Lm Ericsson (publ)

John Olsson

Andreas Anulf

Jan Dahl

Håkan Karlsson

Mikael Forsberg

Jörgen Axell

Mikael Dorsberg

Henrik Flordal

John-Paul Duffy

Fergal Mc Glynn

Anders Lundstedt

Javier Ferrer

Daniel Johansson

According to a first aspect of the present invention there is provided a method of operating an Application Server (AS) that implements an IP Multimedia Subsystem (IMS) supplementary service for a user. The method includes configuring a rule for the user, the rule having an action specifying whether or not an announcement is to be provided and, if an announcement is to be provided, defining media to be used for the announcement. The method further includes determining if a condition of the rule is met by a Session Initiation Protocol (SIP) message relating to the user and, if so, implementing an announcement in accordance with the action.

Methods and apparatus for configuring and implementing announcements for IP multimedia subsystem supplementary services

An application server invocated terminating service is enabled in an IMS based communication network. A request-to-establish message is received by an application server in a terminating part of the network, initiated by a calling party associated to an originating part of the network. The request-to-establish message is supplemented with information that the terminating service is desired to a called party associated to the terminating part, before being transmitted to an access node to which the called party is associated. A called terminal used by the called party is then notified that the terminating service is applicable by the access node, before the application server is confirmed that the called terminal has been notified. Supplementing the request-to-establish message in this way, enables parties communicating over an IMS based network to use the terminating service, regardless of whether they are directly associated to the network or via a non-IMS based communications network.

Method for achieving a call-waiting functionality in a communication network

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Saltsjö-Boo, Sweden

John Olsson