US 2014/0192773 A1 · Traffic Control Within an IP Multimedia Subsystem

Abstract

A method of handling traffic within an IP Multimedia Subsystem, IMS, network. The method comprises registering an IMS user with a first Serving Call Session Control Function, S-CSCF, of the IMS network. Subsequently, at the first S-CSCF, a decision is made or instruction received to transfer said user to an alternative, second S-CSCF within the IMS network. A notification is sent from said first S-CSCF to a further IMS node, the notification including an explicit instruction to select a second S-CSCF and, upon receipt of said notification at the further IMS node, an S-CSCF reselection initiated for the user in order to select a second S-CSCF.

Claims21

Dependent claims

A method of handling traffic within an IP Multimedia Subsystem (IMS), network, the method comprising:

registering an IMS user with a first Serving Call Session Control Function (S-CSCF) of the IMS network;
at the first S-CSCF, making a decision or receiving an instruction to transfer said user to an alternative, second S-CSCF within the IMS network;
sending a notification from said first S-CSCF to a further IMS node, the notification including an explicit instruction to select a second S-CSCF;
and
upon receipt of said notification at the further IMS node, initiating an S-CSCF reselection for the user in order to select a second S-CSCF.

2 more elements

Dependencies are inferred from the claim text.

Traffic Control Within an IP Multimedia Subsystem

Life of this patent

Traffic Control Within an IP Multimedia Subsystem

Life of this patent

Abstract

Claims21