designed a virtualized IMS testbed which contains virtualized P-CSCF, S-CSCF, HSS and UE (User Equipment) based on VMWare .
The CSCF server performs the role of a P-CSCF and S-CSCF.
Simulates P-CSCF, I-CSCF, S-CSCF
, PCRF, HSS, BGCF, MGCF elements in LTE IMS network supporting Cx/Dx, Rx, Gx, Gm, Mw, SGi, Mi, and Mj interfaces
The session controlling signals are transmitted to S-CSCF through I-SCSF of the home network by means of P-CSCF of the target network.
SIP registration messages are transmitted to S-CSCF through P-CSCF.
The member information is transmitted to the designated S-CSCF.
Los servidores SIP se comunican directamente al nodo S-CSCF a traves del protocolo SIP.
El S-CSCF es el nodo central del plano de senalizacion y tiene la responsabilidad de controlar y enrutar las sesiones destinadas o iniciadas por el usuario en la red IMS.
Main functions of the S-CSCF are: a) acceptance of registration requests from UE (signalling with HSS needed), b) provides controlling procedures for registered UE sessions, it means that UE's capabilities is not limited and may vary (we do not evaluate this option here), c) interacts with application platforms for different services, also with service event registration platforms, as billing services etc.
7) I-CSCF sends request to the S-CSCF with all addressing, identifying and network information needed for session establishment.
248 Mp, Mn HTTP Ut Not specified Ml, Mx, Ix, Iq Protocol Involved entities SIP UE, P-CSCF, I-CSCF, S-CSCF
, AS, IBCF, MGCF, BGCF, MRFC Dismeter I-CSCF, S-CSCF
, HSS, SLF, AS, SIP AS, OSA SCS, OSA SCF, IM-SSF, PCRF, MRCF, OCS, BCF, MGCF, IBCF, CDF MAP (Mobile IM-SSF, HSS Application Part) H.
acts as a SIP registrar that maintains binding information (e.