NODES AND METHODS FOR BYPASSING A NETWORK NODE IN AN INTERNET PROTOCOL (IP) MULTIMEDIA SUBSYSTEM (IMS) SYSTEM

摘要

The invention relates to methods, IMS system, and nodes such as P-CSCF, I-CSCF and S-CSCF for bypassing a network node, such as the HSS, during a reregistration procedure. Communication links are monitored and if a probability of success of a new request to the network node is within a range, then the network node can be bypassed.

主权项

1. An Internet Protocol (IP) Multimedia Subsystem (IMS) system configured to:
determine, based on statistics of success rate of past requests to a network node, a probability of success of a new request to the network node; and upon determination that the probability of success of the new request is within a probability of success range, transmit a reregister request directly to a Serving Call Session Control Function (S-CSCF) using an address of the S-CSCF provided in a Service Route header, thereby bypassing the network node.