How to introduce common channel signaling system to IP network (discussion-1)

摘要

We have considered introducing No.7 Common Channel Signaling System to an IP Network. Telephones can be connected edge nodes of the IP network through MRs (media routers; similar to VoIP routers), by using the 1ine connection controls which consists of series of messages, IAM, ACM, CPG, ANM, REL, RLC, etc., defined by the No.7 System. Both telephone services between different enterprises (outside line) using global IP addresses and these within the same company LANs (extension) using private IP addresses can be realized. The IP network and PSTN are enabled to be connected with NNT. SIP and H323 telephone terminals are also supported with the IP network. The IP network as mentioned above takes a position of "Public IP network" for its function like "public telephone network".