(= call session control function,
"kõneseansi juhtimise funktsioon")

olemus
IMS-võrgu keskne signaalimis- ja juhtimiskomponent
=
a central component of the IP Multimedia Subsystem (IMS), managing all signaling from the end user to services and other networks

ülevaateid
https://en.wikipedia.org/wiki/IP_Multimedia_Subsystem#CSCF_%E2%80%93_Call_Session_Control_Function

https://www.sciencedirect.com/topics/computer-science/session-control

https://www.connectedtech.org/educators/docs/04%20-%20ims%20overview.ppt