success 327131 imsloadbalancer 2009-04-19T00:48:48Z 2009-05-17T12:05:04Z This project aims to develop a support for granting QoS in a Presence Service under the IMS framework by using LoadBalacing. Its well known that IMS framework use the SIP protocol to build sessions between User Agents. In front of heavy loading on the S-CSCF entity, we want solve this problem exploring the replication of the S-CSCF server to build an efficient Presence Service. Publish and Notify methods may sometime overload the system because the UAs registration are distribuited over several S-CSCF with their own HSS. So the replication of several S-CSCF may be the cause of an explosion of Publish and Notifiy messages over the network. We are exploring in an architecture that may permit to build an efficient and scalable Presence Service over the IMS framework. In this former scenario we make the assumption that we are working in a single domain. Future works can be aimed to investigate over multiple domain optimization problems. In this project we are thinking to use the OpenSIPS server (http://www.opensips.org) to build the P-CSCF, S-CSCF and Presence Service. http://code.google.com/p/imsloadbalancer imsloadbalancer 0 0 564375 564375 327131 2009-06-22T12:10:12Z 2009-06-22T12:09:37Z 2009-03-01T00:00:00Z 2009-04-01T00:00:00Z 2 774 5 Java gpl GNU General Public License 2.0