| 摘要 |
<p>A R-IM-SSF gateway (G) is intended for being part of a communication system comprising at least a circuit switched network (PN), with Intelligent Network capabilities, and IMS application servers (AS1-ASN) arranged for handling services offered to subscribers of this communication system and for communicating with the R-IM-SSF gateway (G) through SIP messages. This R-IM-SSF gateway (G) is distributed into instances that i) are associated to the subscribers, ii) are each capable of translating IN protocol messages and SIP messages exchanged between the circuit switched network (PN) and the IMS application servers (AS1-ASN) during Circuit Switch calls of subscribers, and iii) each act as a S-CSCF node for these IMS application servers (AS1-ASN), and as a SCP for the circuit switched network (PN), to allow the IMS application servers (AS1-ASN) to control underlying Circuit Switch calls of the subscribers.</p> |
