Purpose
This chapter describes the software architecture and configuration necessary for the implementation of SS7 over the EXNET ring, which enables SS7 control of circuits across nodes in a CSP. Cantata has developed SS7 over the ring to provide a system-level integration of the industry-standard SS7 technology into the CSP. The CSP product and SS7 protocol together provide the capability for signaling links to be physically terminated on a single node, called the SS7 Server Node. Thus, SS7 over the ring allows control and handling of those links to be processed on a single or redundant pair of SS7 cards located within that node. The actual voice channels or Circuit Identification Codes (CICs) being controlled by the signaling links can originate or terminate on any node, local or remote, within the domain controlled by the SS7 Server Node in the CSP.