The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2010
Filed:
Jul. 24, 2006
Christophe Gourraud, Fribourg, CH;
Christophe Gourraud, Fribourg, CH;
Swisscom AG, Bern, CH;
Abstract
For subscribing a user to a service offered by a first application server (SIP-AS) of an Internet Protocol Multimedia Subsystem, a request for the service, addressed to a public service identifier of the service, is received from the user in a Call Session Control Function unit (S-CSCF). The request is evaluated based on filter criteria (iCF) associated with the user. In absence of the filter criteria (iCF) associating the service with the first application server (SIP-AS), the request is forwarded to a second application server (SIP-AS) based on addressing information obtained from filter criteria (FC) associated with the public service identifier. The second application server (SIP-AS) transmits to the user a message that includes means for enabling the user to subscribe to the service. Users can be subscribed to a service at the time they desire to use the service, immediately preceding usage of the service. IMS user profiles are used as the basis for deciding whether or not a user is subscribed to a service, consequently, there is no need to provide interfaces to data repositories of multimedia services for determining the subscription status of a user. Subscription mechanisms for multimedia services can be centralized in a dedicated application server.