Telefonaktiebolaget Lm Ericsson (publ)

David Khan

Anders Baer

Timo Forsman

Jan Dahl

Tobias Austrell

Magnus Harnesk

Baer Anders

A technique for configuring a user equipment () for establishing an emergency session is provided. The user equipment () is wirelessly connected to a communications network (). As to a method aspect of the technique, configuration information indicative of one or more networks available for the establishing of the emergency session is received via the communications network (). A list of networks available for the establishing of the emergency session is maintained based on the received configuration information.

Configuration technique for an emergency session

A method of and apparatus for generating, storing and transmitting information relating to a session between an endpoint in an enterprise and an endpoint remote from the enterprise to enable the remote endpoint to contact the enterprise endpoint in a subsequent communications session. The information generated includes, at least, a session identifier identifying the session and the identity of the enterprise endpoint. Advantageously the remote endpoint is also provided with the enterprise communication identity or other means to enable the remote endpoint to associate the session identifier with the enterprise's communication identity.

Session persistent data and method of use thereof

A method of communication between two nodes providing online charging functionalities in an IP Multimedia Subsystem (IMS) network is described, wherein a first node is configured to operate as a Charging Triggering Function (CTF) and wherein a second node is configured to operate as an Online Charging Service (OCS). The method may alleviate drawbacks stemming from low availability of the OCS.

Method of communication between IMS nodes

Apparatus for use within an IP Multimedia Subsystem network and comprising a receiver for receiving for a given user a charging type defining whether the user is a pre-paid user and or a post-paid user. The apparatus further comprises a Charging Triggering Function, CTF, entity for sending accounting information messages relating to said user to an Online Charging Function over an Ro interface or to a Charging Data Function over an Rf interface, and for including with the accounting information messages said charging type.

Charging decisions in an IP multimedia subsystem

A method of routing signalling plane traffic through or out of an IP Multimedia Subsystem, IMS, network. The method comprises maintaining within user profile data stored in a subscriber database of the IMS network, routing information defining signalling plane routing profiles for a user associated with the user profile data. Said routing information is transferred from the subscriber database to a Call Session Control Function, CSCF, of the IMS network at or following registration of said user to the IMS network. The method then comprises handling a Session Initiation Protocol, SIP, request for said user at the CSCF including adding said routing information into the request and forwarding the SIP request to a next hop node, and, at said next hop node or at a further downstream node, making a routing decision for the SIP request or for related signalling on the basis of the routing information contained within the SIP request.

Traffic routing across and between networks

One aspect provides a method of storing charging data in an IMS network. A message is received at a network entity. A charging priority value of the message relating to charging data associated with the message id identified. The charging priority value is included in a charging request message and the charging request message is forwarded to a charging control system. Other aspects provide IMS network entities configured to implement the method.

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Bromma, Sweden

David Khan