US 8,819,281 B2Granted

Method and system for forwarding a message in a session initiation protocol based communications network

AssigneeTelefonaktiebolaget L M Ericsson (publ)

InventorsJos Den Hartog, Rogier August Caspar Noldus

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Abstract

Method and system for forwarding a message in a Session Initiation Protocol, SIP, based communications network, to a first and second SIP user equipment of a subscriber via a controller server and one of a plurality of traffic handler servers. The first user equipment may have first capabilities different from second capabilities of the second user equipment. The controller server receives the message; determines which first traffic handler server of the plurality of traffic handler servers is arranged for providing a first service associated with the first capabilities, and which second traffic handler server of the plurality of traffic handler servers is arranged for providing a second service associated with the second capabilities; and forwards the message to the first user equipment via the first traffic handler server, and to the second user equipment via the second traffic handler server.

Claims17

Dependent claims

A method of forwarding a message, in a Session Initiation Protocol (SIP) based communications network and to a first SIP User Equipment associated with a SIP User Agent corresponding to a subscriber, via a controller server comprising a Serving Call Session Control Function entity and one of a plurality of traffic handler servers comprising Serving Call Session Control Function entities, and forwarding the message to a second SIP User Equipment associated with the SIP User Agent corresponding to the subscriber, via the controller server and one of the plurality of traffic handler servers, the first SIP User Equipment having first capabilities and the second SIP User Equipment having second capabilities different from the first capabilities, the method comprising:

receiving, by the controller server, the message, the controller server configured to handle SIP registrations and maintain subscriber data;
determining which first traffic handler server of the plurality of traffic handler servers is configured to provide a first service associated with the first capabilities, and determining which second traffic handler server of the plurality of traffic handler servers is configured to provide a second service associated with the second capabilities, each traffic handler server configured to handle at least one of SIP sessions and third party registrations;
and
forwarding the message from the controller server to the first SIP User Equipment via the first traffic handler server, and forwarding the message to the second SIP User Equipment via the second traffic handler server.

1 more element

A system for forwarding a message in a Session Initiation Protocol (SIP) based communications network and to a first SIP User Equipment associated with a SIP User Agent corresponding to a subscriber and to a second SIP User Equipment associated with the User Agent corresponding to the subscriber, the first SIP User Equipment having first capabilities and the second SIP User Equipment having second capabilities different from the first capabilities, the system comprising:

a controller server comprising a Serving Call Session Control Function entity associated with the subscriber, the controller server configured to handle SIP registrations and maintain subscriber data;
and
a plurality of traffic handler servers comprising Serving Call Session Control Function entities, each traffic handler server configured to handle at least one of SIP sessions and third party registrations;
wherein the controller server is configured to:
receive the message;
determine which first traffic handler server of the plurality of traffic handler servers is configured to provide a first service associated with the first capabilities, and determine which second traffic handler server of the plurality of traffic handler servers is configured to provide a second service associated with the second capabilities;
and
forward the message to the first SIP User Equipment via the first traffic handler server, and forward the message to the second SIP User Equipment via the second traffic handler server.

5 more elements

Dependencies are inferred from the claim text.