Conclusion: A general conclusion will be made on all the contributions dealing with registration flow.
S2-001452 from Lucent: Serving CSCF Assignment
Lucent proposes to state in 23.002 that the I CSCF has the functionality of S CSCF assignment, including assignment of a Serving CSCF in either the Home or Visited networks and may depend on an analysis of available resources as well as on an analysis of the required capabilities as determined by service profile information.
Discussion: A related point is to determine whether the HSS is SIP-capable (in other words, if it is a SIP-server).
Ericsson prefer to go through a Ressource Broker, as to avoid updating all the I-CSCF each time a new S-CSCF is available. Alcatel answered this is not a valid argument: it’s just moving the problem but not solving it (it depends how many “RB” and how many I-CSCF will be deployed in the network): the problem is how to distribute the function for scalability concern.
Motorola stressed that putting the function of CSCF decision in HSS is not appropriate.
Dostları ilə paylaş: | 
