Method of changing over from a primary HSS to a backup HSS in an IP network

摘要

A method is provided for changing over from a primary home subscriber server (HSS) to a backup HSS in an IP network, said network having a plurality of call server control function (CSCF) (or application) servers, in which, after detection of a loss of connection between one of said CSCF (or application) servers and a primary HSS to which it is normally connected, the CSCF (or application) server connects itself to a backup HSS. The method also comprises the following steps: a) a predetermined broadcast device is informed of said loss of connection with said HSS; b) said broadcast device sends a predetermined fault message at least to the other CSCF (or application) servers that are normally connected to said primary HSS, said message containing the reference of said primary HSS; and c) said other CSCF (or application) servers connect themselves to said backup HSS.

主权项

1. A method of changing over from a primary home subscriber server (HSS) to a backup HSS in an IP network, said network having a plurality of call server control function (CSCF) or application servers, in which method, after one of said CSCF or application servers has detected a loss of its connection to a primary HSS to which it is supposed to be connected, the CSCF or application server connects itself to a backup HSS, the method comprising the following steps:
a) a predetermined broadcast device is informed of said loss of connection with said HSS; b) said broadcast device sends a predetermined fault message to at least one other CSCF or application server that is supposed to be connected to said primary HSS, said message containing a reference of said primary HSS; and c) said at least one other CSCF or application server connects itself to said backup HSS.