This library contains the CPI for the vCSCF. The CSCF is an essential module in IMS for processing signalling, using SIP as the signalling protocol. It supports Internet Protocols on a scalable and high-performance platform. The CSCF handles session establishment, modification, and release of Internet Protocol (IP) multimedia sessions using the Session Initiation Protocol/Session Description Protocol (SIP/SDP) suite.The vCSCF product is a software only product.