Telefonaktiebolaget Lm Ericsson (Publ)

Patrick Timmers

Rogier Noldus

Johannes Van Elburg

Joost Herman Bosschert

Fredrik Lindholm

Gert Öster

Hans-Erik Van Elburg

A method of facilitating access to services of an IP Multimedia Subsystem, by users groups that require alternative handling in relation to the standard handling of IP Multimedia Subsystem users. Functioning instructions are added to the user group s subscription maintained in the IP Multimedia Subsystem, instructing nodes in the IP Multimedia Subsystem to adapt their standard functioning for this specific group of users. The instructions in a subscription of a specific user group, provide a node of the IP Multimedia Subsystem that does no longer need to be specific for certain types of users, but has a standard way of operation, that is modified by instructions for dedicated operation for only that specific user group. In further aspect embodiments are disclosed providing improved solutions for known problems of IP Multimedia Subsystems making use of functioning instructions included in the subscription.

Group access to IP multimedia subsystem service

A method of facilitating access to services of an IP Multimedia Subsystem network by services located behind an access point to said network. The access point is associated with a subscription to the IP Multimedia Subsystem network. The method comprises including within an Implicit Registration Set defined for said subscription, a wildcarded Public Service Identity or Public Service Identity sub-domain representative of a range of Public Service Identities. At IP Multimedia Subsystem registration of said access point with the IP Multimedia Subsystem network, the Public Service Identities contained in the Implicit Registration Set are distributed to a Serving Call Session Control Function allocated to said access point and to a Proxy Call Session Control Function to which said access point is attached.

A method of facilitating access to services of an IP Multimedia Subsystem, by users groups that require alternative handling in relation to the standard handling of IP Multimedia Subsystem users. Functioning instructions are added to the user groups subscription maintained in the IP Multimedia Subsystem, instructing nodes in the IP Multimedia Subsystem to adapt their standard functioning for this specific group of users. The instructions in a subscription of a specific user group, provide a node of the IP Multimedia Subsystem that does no longer need to be specific for certain types of users, but has a standard way of operation, that is modified by instructions for dedicated operation for only that specific user group. In further aspect embodiments are disclosed providing improved solutions for known problems of IP Multimedia Subsystems making use of functioning instructions included in the subscription.

A method of facilitating access to services of an IP Multimedia Subsystem network by user terminals and services located behind an access point to said network. The access point is associated with a subscription to the IP Multimedia Subsystem network. The method comprises including within an Implicit Registration Set defined for said subscription, a wildcarded Public User Identity, Public Service Identity, Public User Identity sub-domain representative of a range of Public User Identities, or Public Service Identity sub-domain representative of a range of Public Service Identities. At IP Multimedia Subsystem registration of said access point with the IP Multimedia Subsystem network, the Public User Identities and Service Identities contained in the Implicit Registration Set are distributed to a Serving Call Session Control Function allocated to said access point and to a Proxy Call Session Control Function to which said access point is attached.

A method of facilitating access to services of an IP Multimedia Subsystem network by user terminals located behind an access point to said network. The access point is associated with a subscription to the IP Multimedia Subsystem network. The method comprises including within an Implicit Registration Set defined for said subscription, a wildcarded Public User Identity or Public User Identity sub-domain representative of a range of Public User Identities. At IP Multimedia Subsystem registration of said access point with the IP Multimedia Subsystem network, the Public User Identities contained in the Implicit Registration Set are distributed to a Serving Call Session Control Function allocated to said access point and to a Proxy Call Session Control Function to which said access point is attached.

Growing community of inventors

Utrecht, Netherlands

Patrick Timmers